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Finding the Fourth Proportional to 626,417.32, 864,456.46 and 339,937.41

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Solution

The fourth proportional to 626,417.32, 864,456.46 and 339,937.41 is: 469,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,417.32 : 864,456.46 = 339,937.41 : x
  2. Step 2: Convert to fraction form
    626,417.32/864,456.46 = 339,937.41/x
  3. Step 3: Cross multiply
    626,417.32x = 864,456.46 × 339,937.41
  4. Step 4: Simplify right side
    626,417.32x = 293,861,088,555.54
  5. Step 5: Solve for x
    x = 293,861,088,555.54/626,417.32
  6. Step 6: Final answer
    x = 469,113.92

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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.