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Finding the Fourth Proportional to 488,686.40, 733,029.60 and 472,356.80

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Solution

The fourth proportional to 488,686.40, 733,029.60 and 472,356.80 is: 708,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,686.40 : 733,029.60 = 472,356.80 : x
  2. Step 2: Convert to fraction form
    488,686.40/733,029.60 = 472,356.80/x
  3. Step 3: Cross multiply
    488,686.40x = 733,029.60 × 472,356.80
  4. Step 4: Simplify right side
    488,686.40x = 346,251,516,161.28
  5. Step 5: Solve for x
    x = 346,251,516,161.28/488,686.40
  6. Step 6: Final answer
    x = 708,535.20

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Similar ratio
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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.