Home / 762,203.52-1,143,138.42-312,481.80

Finding the Fourth Proportional to 762,203.52, 1,143,138.42 and 312,481.80

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Solution

The fourth proportional to 762,203.52, 1,143,138.42 and 312,481.80 is: 468,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,203.52 : 1,143,138.42 = 312,481.80 : x
  2. Step 2: Convert to fraction form
    762,203.52/1,143,138.42 = 312,481.80/x
  3. Step 3: Cross multiply
    762,203.52x = 1,143,138.42 × 312,481.80
  4. Step 4: Simplify right side
    762,203.52x = 357,209,951,130.76
  5. Step 5: Solve for x
    x = 357,209,951,130.76/762,203.52
  6. Step 6: Final answer
    x = 468,654.29

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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.