Home / 698,770.73-964,337.79-392,943.35

Finding the Fourth Proportional to 698,770.73, 964,337.79 and 392,943.35

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Solution

The fourth proportional to 698,770.73, 964,337.79 and 392,943.35 is: 542,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,770.73 : 964,337.79 = 392,943.35 : x
  2. Step 2: Convert to fraction form
    698,770.73/964,337.79 = 392,943.35/x
  3. Step 3: Cross multiply
    698,770.73x = 964,337.79 × 392,943.35
  4. Step 4: Simplify right side
    698,770.73x = 378,930,121,734.20
  5. Step 5: Solve for x
    x = 378,930,121,734.20/698,770.73
  6. Step 6: Final answer
    x = 542,281.05

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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.