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Finding the Fourth Proportional to 698,750.91, 964,310.46 and 392,923.58

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Solution

The fourth proportional to 698,750.91, 964,310.46 and 392,923.58 is: 542,253.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,750.91 : 964,310.46 = 392,923.58 : x
  2. Step 2: Convert to fraction form
    698,750.91/964,310.46 = 392,923.58/x
  3. Step 3: Cross multiply
    698,750.91x = 964,310.46 × 392,923.58
  4. Step 4: Simplify right side
    698,750.91x = 378,900,313,353.10
  5. Step 5: Solve for x
    x = 378,900,313,353.10/698,750.91
  6. Step 6: Final answer
    x = 542,253.77

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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.