Home / 485,233.40-727,850.10-383,756.60

Finding the Fourth Proportional to 485,233.40, 727,850.10 and 383,756.60

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Solution

The fourth proportional to 485,233.40, 727,850.10 and 383,756.60 is: 575,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,233.40 : 727,850.10 = 383,756.60 : x
  2. Step 2: Convert to fraction form
    485,233.40/727,850.10 = 383,756.60/x
  3. Step 3: Cross multiply
    485,233.40x = 727,850.10 × 383,756.60
  4. Step 4: Simplify right side
    485,233.40x = 279,317,279,685.66
  5. Step 5: Solve for x
    x = 279,317,279,685.66/485,233.40
  6. Step 6: Final answer
    x = 575,634.90

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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.