Home / 753,115.88-1,129,673.80-220,636.92

Finding the Fourth Proportional to 753,115.88, 1,129,673.80 and 220,636.92

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Solution

The fourth proportional to 753,115.88, 1,129,673.80 and 220,636.92 is: 330,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,115.88 : 1,129,673.80 = 220,636.92 : x
  2. Step 2: Convert to fraction form
    753,115.88/1,129,673.80 = 220,636.92/x
  3. Step 3: Cross multiply
    753,115.88x = 1,129,673.80 × 220,636.92
  4. Step 4: Simplify right side
    753,115.88x = 249,247,747,836.70
  5. Step 5: Solve for x
    x = 249,247,747,836.70/753,115.88
  6. Step 6: Final answer
    x = 330,955.37

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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.