Home / 754,129.40-1,129,679.51-348,753.41

Finding the Fourth Proportional to 754,129.40, 1,129,679.51 and 348,753.41

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Solution

The fourth proportional to 754,129.40, 1,129,679.51 and 348,753.41 is: 522,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,129.40 : 1,129,679.51 = 348,753.41 : x
  2. Step 2: Convert to fraction form
    754,129.40/1,129,679.51 = 348,753.41/x
  3. Step 3: Cross multiply
    754,129.40x = 1,129,679.51 × 348,753.41
  4. Step 4: Simplify right side
    754,129.40x = 393,979,576,543.12
  5. Step 5: Solve for x
    x = 393,979,576,543.12/754,129.40
  6. Step 6: Final answer
    x = 522,429.68

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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.