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Finding the Fourth Proportional to 878,565.61, 1,317,349.05 and 345,797.83

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Solution

The fourth proportional to 878,565.61, 1,317,349.05 and 345,797.83 is: 518,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,565.61 : 1,317,349.05 = 345,797.83 : x
  2. Step 2: Convert to fraction form
    878,565.61/1,317,349.05 = 345,797.83/x
  3. Step 3: Cross multiply
    878,565.61x = 1,317,349.05 × 345,797.83
  4. Step 4: Simplify right side
    878,565.61x = 455,536,442,842.56
  5. Step 5: Solve for x
    x = 455,536,442,842.56/878,565.61
  6. Step 6: Final answer
    x = 518,500.20

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