Home / 781,315.80-1,171,973.70-220,350.30

Finding the Fourth Proportional to 781,315.80, 1,171,973.70 and 220,350.30

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Solution

The fourth proportional to 781,315.80, 1,171,973.70 and 220,350.30 is: 330,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,315.80 : 1,171,973.70 = 220,350.30 : x
  2. Step 2: Convert to fraction form
    781,315.80/1,171,973.70 = 220,350.30/x
  3. Step 3: Cross multiply
    781,315.80x = 1,171,973.70 × 220,350.30
  4. Step 4: Simplify right side
    781,315.80x = 258,244,756,387.11
  5. Step 5: Solve for x
    x = 258,244,756,387.11/781,315.80
  6. Step 6: Final answer
    x = 330,525.45

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.