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Finding the Fourth Proportional to 478,592.53, 660,449.18 and 260,803.10

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Solution

The fourth proportional to 478,592.53, 660,449.18 and 260,803.10 is: 359,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,592.53 : 660,449.18 = 260,803.10 : x
  2. Step 2: Convert to fraction form
    478,592.53/660,449.18 = 260,803.10/x
  3. Step 3: Cross multiply
    478,592.53x = 660,449.18 × 260,803.10
  4. Step 4: Simplify right side
    478,592.53x = 172,247,195,839.59
  5. Step 5: Solve for x
    x = 172,247,195,839.59/478,592.53
  6. Step 6: Final answer
    x = 359,903.65

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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.