Home / 782,340.40-1,174,288.20-383,431.60

Finding the Fourth Proportional to 782,340.40, 1,174,288.20 and 383,431.60

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Solution

The fourth proportional to 782,340.40, 1,174,288.20 and 383,431.60 is: 575,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,340.40 : 1,174,288.20 = 383,431.60 : x
  2. Step 2: Convert to fraction form
    782,340.40/1,174,288.20 = 383,431.60/x
  3. Step 3: Cross multiply
    782,340.40x = 1,174,288.20 × 383,431.60
  4. Step 4: Simplify right side
    782,340.40x = 450,259,203,387.12
  5. Step 5: Solve for x
    x = 450,259,203,387.12/782,340.40
  6. Step 6: Final answer
    x = 575,528.51

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Double scale
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Similar ratio
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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.