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Finding the Fourth Proportional to 566,797.80, 782,175.78 and 312,143.52

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Solution

The fourth proportional to 566,797.80, 782,175.78 and 312,143.52 is: 430,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,797.80 : 782,175.78 = 312,143.52 : x
  2. Step 2: Convert to fraction form
    566,797.80/782,175.78 = 312,143.52/x
  3. Step 3: Cross multiply
    566,797.80x = 782,175.78 × 312,143.52
  4. Step 4: Simplify right side
    566,797.80x = 244,151,101,227.95
  5. Step 5: Solve for x
    x = 244,151,101,227.95/566,797.80
  6. Step 6: Final answer
    x = 430,755.20

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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.