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Finding the Fourth Proportional to 478,758.71, 660,716.57 and 263,898.29

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Solution

The fourth proportional to 478,758.71, 660,716.57 and 263,898.29 is: 364,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,758.71 : 660,716.57 = 263,898.29 : x
  2. Step 2: Convert to fraction form
    478,758.71/660,716.57 = 263,898.29/x
  3. Step 3: Cross multiply
    478,758.71x = 660,716.57 × 263,898.29
  4. Step 4: Simplify right side
    478,758.71x = 174,361,970,353.83
  5. Step 5: Solve for x
    x = 174,361,970,353.83/478,758.71
  6. Step 6: Final answer
    x = 364,195.93

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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.