Home / 765,588.59-1,149,180.92-339,423.69

Finding the Fourth Proportional to 765,588.59, 1,149,180.92 and 339,423.69

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Solution

The fourth proportional to 765,588.59, 1,149,180.92 and 339,423.69 is: 509,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,588.59 : 1,149,180.92 = 339,423.69 : x
  2. Step 2: Convert to fraction form
    765,588.59/1,149,180.92 = 339,423.69/x
  3. Step 3: Cross multiply
    765,588.59x = 1,149,180.92 × 339,423.69
  4. Step 4: Simplify right side
    765,588.59x = 390,059,228,344.00
  5. Step 5: Solve for x
    x = 390,059,228,344.00/765,588.59
  6. Step 6: Final answer
    x = 509,489.34

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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.