Home / 782,856.20-1,174,284.30-408,830.60

Finding the Fourth Proportional to 782,856.20, 1,174,284.30 and 408,830.60

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Solution

The fourth proportional to 782,856.20, 1,174,284.30 and 408,830.60 is: 613,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,856.20 : 1,174,284.30 = 408,830.60 : x
  2. Step 2: Convert to fraction form
    782,856.20/1,174,284.30 = 408,830.60/x
  3. Step 3: Cross multiply
    782,856.20x = 1,174,284.30 × 408,830.60
  4. Step 4: Simplify right side
    782,856.20x = 480,083,354,939.58
  5. Step 5: Solve for x
    x = 480,083,354,939.58/782,856.20
  6. Step 6: Final answer
    x = 613,245.90

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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.