Home / 778,843.20-1,074,817.56-456,785.52

Finding the Fourth Proportional to 778,843.20, 1,074,817.56 and 456,785.52

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Solution

The fourth proportional to 778,843.20, 1,074,817.56 and 456,785.52 is: 630,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,843.20 : 1,074,817.56 = 456,785.52 : x
  2. Step 2: Convert to fraction form
    778,843.20/1,074,817.56 = 456,785.52/x
  3. Step 3: Cross multiply
    778,843.20x = 1,074,817.56 × 456,785.52
  4. Step 4: Simplify right side
    778,843.20x = 490,961,098,049.73
  5. Step 5: Solve for x
    x = 490,961,098,049.73/778,843.20
  6. Step 6: Final answer
    x = 630,372.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.