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Finding the Fourth Proportional to 478,710.57, 718,084.08 and 179,159.61

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Solution

The fourth proportional to 478,710.57, 718,084.08 and 179,159.61 is: 268,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,710.57 : 718,084.08 = 179,159.61 : x
  2. Step 2: Convert to fraction form
    478,710.57/718,084.08 = 179,159.61/x
  3. Step 3: Cross multiply
    478,710.57x = 718,084.08 × 179,159.61
  4. Step 4: Simplify right side
    478,710.57x = 128,651,663,720.01
  5. Step 5: Solve for x
    x = 128,651,663,720.01/478,710.57
  6. Step 6: Final answer
    x = 268,746.24

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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.