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Finding the Fourth Proportional to 702,151.92, 968,960.10 and 392,059.29

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Solution

The fourth proportional to 702,151.92, 968,960.10 and 392,059.29 is: 541,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,151.92 : 968,960.10 = 392,059.29 : x
  2. Step 2: Convert to fraction form
    702,151.92/968,960.10 = 392,059.29/x
  3. Step 3: Cross multiply
    702,151.92x = 968,960.10 × 392,059.29
  4. Step 4: Simplify right side
    702,151.92x = 379,889,808,844.33
  5. Step 5: Solve for x
    x = 379,889,808,844.33/702,151.92
  6. Step 6: Final answer
    x = 541,036.49

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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.