Home / 466,143.28-643,327.11-284,961.28

Finding the Fourth Proportional to 466,143.28, 643,327.11 and 284,961.28

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Solution

The fourth proportional to 466,143.28, 643,327.11 and 284,961.28 is: 393,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,143.28 : 643,327.11 = 284,961.28 : x
  2. Step 2: Convert to fraction form
    466,143.28/643,327.11 = 284,961.28/x
  3. Step 3: Cross multiply
    466,143.28x = 643,327.11 × 284,961.28
  4. Step 4: Simplify right side
    466,143.28x = 183,323,316,724.30
  5. Step 5: Solve for x
    x = 183,323,316,724.30/466,143.28
  6. Step 6: Final answer
    x = 393,276.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.