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Finding the Fourth Proportional to 668,747.68, 922,871.71 and 382,273.90

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Solution

The fourth proportional to 668,747.68, 922,871.71 and 382,273.90 is: 527,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,747.68 : 922,871.71 = 382,273.90 : x
  2. Step 2: Convert to fraction form
    668,747.68/922,871.71 = 382,273.90/x
  3. Step 3: Cross multiply
    668,747.68x = 922,871.71 × 382,273.90
  4. Step 4: Simplify right side
    668,747.68x = 352,789,761,255.64
  5. Step 5: Solve for x
    x = 352,789,761,255.64/668,747.68
  6. Step 6: Final answer
    x = 527,537.93

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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.