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Finding the Fourth Proportional to 617,143.52, 926,241.28 and 243,428.96

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Solution

The fourth proportional to 617,143.52, 926,241.28 and 243,428.96 is: 365,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,143.52 : 926,241.28 = 243,428.96 : x
  2. Step 2: Convert to fraction form
    617,143.52/926,241.28 = 243,428.96/x
  3. Step 3: Cross multiply
    617,143.52x = 926,241.28 × 243,428.96
  4. Step 4: Simplify right side
    617,143.52x = 225,473,951,499.47
  5. Step 5: Solve for x
    x = 225,473,951,499.47/617,143.52
  6. Step 6: Final answer
    x = 365,350.92

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1.5x scale

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.