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Finding the Fourth Proportional to 722,397.31, 997,578.40 and 540,793.96

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Solution

The fourth proportional to 722,397.31, 997,578.40 and 540,793.96 is: 746,797.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,397.31 : 997,578.40 = 540,793.96 : x
  2. Step 2: Convert to fraction form
    722,397.31/997,578.40 = 540,793.96/x
  3. Step 3: Cross multiply
    722,397.31x = 997,578.40 × 540,793.96
  4. Step 4: Simplify right side
    722,397.31x = 539,484,373,346.46
  5. Step 5: Solve for x
    x = 539,484,373,346.46/722,397.31
  6. Step 6: Final answer
    x = 746,797.32

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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.