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Finding the Fourth Proportional to 521,486.51, 782,229.76 and 284,700.02

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Solution

The fourth proportional to 521,486.51, 782,229.76 and 284,700.02 is: 427,050.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,486.51 : 782,229.76 = 284,700.02 : x
  2. Step 2: Convert to fraction form
    521,486.51/782,229.76 = 284,700.02/x
  3. Step 3: Cross multiply
    521,486.51x = 782,229.76 × 284,700.02
  4. Step 4: Simplify right side
    521,486.51x = 222,700,823,693.70
  5. Step 5: Solve for x
    x = 222,700,823,693.70/521,486.51
  6. Step 6: Final answer
    x = 427,050.02

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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.