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Finding the Fourth Proportional to 791,410.40, 1,092,524.72 and 451,813.12

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Solution

The fourth proportional to 791,410.40, 1,092,524.72 and 451,813.12 is: 623,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,410.40 : 1,092,524.72 = 451,813.12 : x
  2. Step 2: Convert to fraction form
    791,410.40/1,092,524.72 = 451,813.12/x
  3. Step 3: Cross multiply
    791,410.40x = 1,092,524.72 × 451,813.12
  4. Step 4: Simplify right side
    791,410.40x = 493,617,002,420.33
  5. Step 5: Solve for x
    x = 493,617,002,420.33/791,410.40
  6. Step 6: Final answer
    x = 623,718.11

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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.