Home / 753,171.36-1,129,766.22-220,703.16

Finding the Fourth Proportional to 753,171.36, 1,129,766.22 and 220,703.16

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Solution

The fourth proportional to 753,171.36, 1,129,766.22 and 220,703.16 is: 331,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,171.36 : 1,129,766.22 = 220,703.16 : x
  2. Step 2: Convert to fraction form
    753,171.36/1,129,766.22 = 220,703.16/x
  3. Step 3: Cross multiply
    753,171.36x = 1,129,766.22 × 220,703.16
  4. Step 4: Simplify right side
    753,171.36x = 249,342,974,815.26
  5. Step 5: Solve for x
    x = 249,342,974,815.26/753,171.36
  6. Step 6: Final answer
    x = 331,057.43

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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.