Home / 754,134.90-1,129,687.78-348,758.90

Finding the Fourth Proportional to 754,134.90, 1,129,687.78 and 348,758.90

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Solution

The fourth proportional to 754,134.90, 1,129,687.78 and 348,758.90 is: 522,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,134.90 : 1,129,687.78 = 348,758.90 : x
  2. Step 2: Convert to fraction form
    754,134.90/1,129,687.78 = 348,758.90/x
  3. Step 3: Cross multiply
    754,134.90x = 1,129,687.78 × 348,758.90
  4. Step 4: Simplify right side
    754,134.90x = 393,988,665,752.45
  5. Step 5: Solve for x
    x = 393,988,665,752.45/754,134.90
  6. Step 6: Final answer
    x = 522,437.92

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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.