Home / 782,116.38-1,079,320.60-424,420.38

Finding the Fourth Proportional to 782,116.38, 1,079,320.60 and 424,420.38

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Solution

The fourth proportional to 782,116.38, 1,079,320.60 and 424,420.38 is: 585,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,116.38 : 1,079,320.60 = 424,420.38 : x
  2. Step 2: Convert to fraction form
    782,116.38/1,079,320.60 = 424,420.38/x
  3. Step 3: Cross multiply
    782,116.38x = 1,079,320.60 × 424,420.38
  4. Step 4: Simplify right side
    782,116.38x = 458,085,652,736.17
  5. Step 5: Solve for x
    x = 458,085,652,736.17/782,116.38
  6. Step 6: Final answer
    x = 585,700.12

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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.