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Finding the Fourth Proportional to 478,562.14, 660,429.65 and 263,716.07

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Solution

The fourth proportional to 478,562.14, 660,429.65 and 263,716.07 is: 363,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,562.14 : 660,429.65 = 263,716.07 : x
  2. Step 2: Convert to fraction form
    478,562.14/660,429.65 = 263,716.07/x
  3. Step 3: Cross multiply
    478,562.14x = 660,429.65 × 263,716.07
  4. Step 4: Simplify right side
    478,562.14x = 174,165,910,490.90
  5. Step 5: Solve for x
    x = 174,165,910,490.90/478,562.14
  6. Step 6: Final answer
    x = 363,935.84

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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.