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Finding the Fourth Proportional to 654,900.43, 903,761.23 and 368,420.52

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Solution

The fourth proportional to 654,900.43, 903,761.23 and 368,420.52 is: 508,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,900.43 : 903,761.23 = 368,420.52 : x
  2. Step 2: Convert to fraction form
    654,900.43/903,761.23 = 368,420.52/x
  3. Step 3: Cross multiply
    654,900.43x = 903,761.23 × 368,420.52
  4. Step 4: Simplify right side
    654,900.43x = 332,964,175,951.53
  5. Step 5: Solve for x
    x = 332,964,175,951.53/654,900.43
  6. Step 6: Final answer
    x = 508,419.54

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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.