Home / 868,139.62-1,198,004.76-480,939.10

Finding the Fourth Proportional to 868,139.62, 1,198,004.76 and 480,939.10

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Solution

The fourth proportional to 868,139.62, 1,198,004.76 and 480,939.10 is: 663,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,139.62 : 1,198,004.76 = 480,939.10 : x
  2. Step 2: Convert to fraction form
    868,139.62/1,198,004.76 = 480,939.10/x
  3. Step 3: Cross multiply
    868,139.62x = 1,198,004.76 × 480,939.10
  4. Step 4: Simplify right side
    868,139.62x = 576,167,331,070.12
  5. Step 5: Solve for x
    x = 576,167,331,070.12/868,139.62
  6. Step 6: Final answer
    x = 663,680.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.