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Finding the Fourth Proportional to 579,159.60, 868,710.60 and 298,705.20

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Solution

The fourth proportional to 579,159.60, 868,710.60 and 298,705.20 is: 448,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,159.60 : 868,710.60 = 298,705.20 : x
  2. Step 2: Convert to fraction form
    579,159.60/868,710.60 = 298,705.20/x
  3. Step 3: Cross multiply
    579,159.60x = 868,710.60 × 298,705.20
  4. Step 4: Simplify right side
    579,159.60x = 259,488,373,515.12
  5. Step 5: Solve for x
    x = 259,488,373,515.12/579,159.60
  6. Step 6: Final answer
    x = 448,042.95

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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.