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Finding the Fourth Proportional to 516,572.55, 712,883.30 and 283,996.65

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Solution

The fourth proportional to 516,572.55, 712,883.30 and 283,996.65 is: 391,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,572.55 : 712,883.30 = 283,996.65 : x
  2. Step 2: Convert to fraction form
    516,572.55/712,883.30 = 283,996.65/x
  3. Step 3: Cross multiply
    516,572.55x = 712,883.30 × 283,996.65
  4. Step 4: Simplify right side
    516,572.55x = 202,456,467,620.96
  5. Step 5: Solve for x
    x = 202,456,467,620.96/516,572.55
  6. Step 6: Final answer
    x = 391,922.62

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1.5x scale

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.