Home / 722,793.12-997,456.32-400,500.60

Finding the Fourth Proportional to 722,793.12, 997,456.32 and 400,500.60

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Solution

The fourth proportional to 722,793.12, 997,456.32 and 400,500.60 is: 552,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,793.12 : 997,456.32 = 400,500.60 : x
  2. Step 2: Convert to fraction form
    722,793.12/997,456.32 = 400,500.60/x
  3. Step 3: Cross multiply
    722,793.12x = 997,456.32 × 400,500.60
  4. Step 4: Simplify right side
    722,793.12x = 399,481,854,633.79
  5. Step 5: Solve for x
    x = 399,481,854,633.79/722,793.12
  6. Step 6: Final answer
    x = 552,691.83

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1.5x scale

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.