Home / 728,411.60-1,092,617.40-651,647.90

Finding the Fourth Proportional to 728,411.60, 1,092,617.40 and 651,647.90

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Solution

The fourth proportional to 728,411.60, 1,092,617.40 and 651,647.90 is: 977,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,411.60 : 1,092,617.40 = 651,647.90 : x
  2. Step 2: Convert to fraction form
    728,411.60/1,092,617.40 = 651,647.90/x
  3. Step 3: Cross multiply
    728,411.60x = 1,092,617.40 × 651,647.90
  4. Step 4: Simplify right side
    728,411.60x = 712,001,834,213.46
  5. Step 5: Solve for x
    x = 712,001,834,213.46/728,411.60
  6. Step 6: Final answer
    x = 977,471.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.