Home / 754,133.90-1,129,686.28-348,757.90

Finding the Fourth Proportional to 754,133.90, 1,129,686.28 and 348,757.90

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Solution

The fourth proportional to 754,133.90, 1,129,686.28 and 348,757.90 is: 522,436.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,133.90 : 1,129,686.28 = 348,757.90 : x
  2. Step 2: Convert to fraction form
    754,133.90/1,129,686.28 = 348,757.90/x
  3. Step 3: Cross multiply
    754,133.90x = 1,129,686.28 × 348,757.90
  4. Step 4: Simplify right side
    754,133.90x = 393,987,015,211.83
  5. Step 5: Solve for x
    x = 393,987,015,211.83/754,133.90
  6. Step 6: Final answer
    x = 522,436.42

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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.