Home / 878,154.10-1,317,318.78-238,468.24

Finding the Fourth Proportional to 878,154.10, 1,317,318.78 and 238,468.24

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Solution

The fourth proportional to 878,154.10, 1,317,318.78 and 238,468.24 is: 357,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,154.10 : 1,317,318.78 = 238,468.24 : x
  2. Step 2: Convert to fraction form
    878,154.10/1,317,318.78 = 238,468.24/x
  3. Step 3: Cross multiply
    878,154.10x = 1,317,318.78 × 238,468.24
  4. Step 4: Simplify right side
    878,154.10x = 314,138,690,985.55
  5. Step 5: Solve for x
    x = 314,138,690,985.55/878,154.10
  6. Step 6: Final answer
    x = 357,726.16

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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.