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Finding the Fourth Proportional to 618,230.60, 926,471.10 and 542,997.80

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Solution

The fourth proportional to 618,230.60, 926,471.10 and 542,997.80 is: 813,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,230.60 : 926,471.10 = 542,997.80 : x
  2. Step 2: Convert to fraction form
    618,230.60/926,471.10 = 542,997.80/x
  3. Step 3: Cross multiply
    618,230.60x = 926,471.10 × 542,997.80
  4. Step 4: Simplify right side
    618,230.60x = 503,071,769,063.58
  5. Step 5: Solve for x
    x = 503,071,769,063.58/618,230.60
  6. Step 6: Final answer
    x = 813,728.35

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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.