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Finding the Fourth Proportional to 610,436.93, 842,387.00 and 338,503.97

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Solution

The fourth proportional to 610,436.93, 842,387.00 and 338,503.97 is: 467,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,436.93 : 842,387.00 = 338,503.97 : x
  2. Step 2: Convert to fraction form
    610,436.93/842,387.00 = 338,503.97/x
  3. Step 3: Cross multiply
    610,436.93x = 842,387.00 × 338,503.97
  4. Step 4: Simplify right side
    610,436.93x = 285,151,337,871.94
  5. Step 5: Solve for x
    x = 285,151,337,871.94/610,436.93
  6. Step 6: Final answer
    x = 467,126.62

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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.