Home / 753,073.52-1,129,610.72-472,787.60

Finding the Fourth Proportional to 753,073.52, 1,129,610.72 and 472,787.60

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Solution

The fourth proportional to 753,073.52, 1,129,610.72 and 472,787.60 is: 709,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,073.52 : 1,129,610.72 = 472,787.60 : x
  2. Step 2: Convert to fraction form
    753,073.52/1,129,610.72 = 472,787.60/x
  3. Step 3: Cross multiply
    753,073.52x = 1,129,610.72 × 472,787.60
  4. Step 4: Simplify right side
    753,073.52x = 534,065,941,243.07
  5. Step 5: Solve for x
    x = 534,065,941,243.07/753,073.52
  6. Step 6: Final answer
    x = 709,181.68

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1.5x scale

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.