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Finding the Fourth Proportional to 440,025.40, 660,038.10 and 351,451.90

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Solution

The fourth proportional to 440,025.40, 660,038.10 and 351,451.90 is: 527,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,025.40 : 660,038.10 = 351,451.90 : x
  2. Step 2: Convert to fraction form
    440,025.40/660,038.10 = 351,451.90/x
  3. Step 3: Cross multiply
    440,025.40x = 660,038.10 × 351,451.90
  4. Step 4: Simplify right side
    440,025.40x = 231,971,644,317.39
  5. Step 5: Solve for x
    x = 231,971,644,317.39/440,025.40
  6. Step 6: Final answer
    x = 527,177.85

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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.