Home / 728,423.40-1,092,635.10-657,564.60

Finding the Fourth Proportional to 728,423.40, 1,092,635.10 and 657,564.60

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Solution

The fourth proportional to 728,423.40, 1,092,635.10 and 657,564.60 is: 986,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,423.40 : 1,092,635.10 = 657,564.60 : x
  2. Step 2: Convert to fraction form
    728,423.40/1,092,635.10 = 657,564.60/x
  3. Step 3: Cross multiply
    728,423.40x = 1,092,635.10 × 657,564.60
  4. Step 4: Simplify right side
    728,423.40x = 718,478,162,477.46
  5. Step 5: Solve for x
    x = 718,478,162,477.46/728,423.40
  6. Step 6: Final answer
    x = 986,346.90

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Double scale
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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.