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Finding the Fourth Proportional to 478,958.64, 660,948.78 and 264,098.66

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Solution

The fourth proportional to 478,958.64, 660,948.78 and 264,098.66 is: 364,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,958.64 : 660,948.78 = 264,098.66 : x
  2. Step 2: Convert to fraction form
    478,958.64/660,948.78 = 264,098.66/x
  3. Step 3: Cross multiply
    478,958.64x = 660,948.78 × 264,098.66
  4. Step 4: Simplify right side
    478,958.64x = 174,555,687,126.64
  5. Step 5: Solve for x
    x = 174,555,687,126.64/478,958.64
  6. Step 6: Final answer
    x = 364,448.35

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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.