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Finding the Fourth Proportional to 478,757.28, 660,685.08 and 263,902.02

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Solution

The fourth proportional to 478,757.28, 660,685.08 and 263,902.02 is: 364,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,757.28 : 660,685.08 = 263,902.02 : x
  2. Step 2: Convert to fraction form
    478,757.28/660,685.08 = 263,902.02/x
  3. Step 3: Cross multiply
    478,757.28x = 660,685.08 × 263,902.02
  4. Step 4: Simplify right side
    478,757.28x = 174,356,127,195.86
  5. Step 5: Solve for x
    x = 174,356,127,195.86/478,757.28
  6. Step 6: Final answer
    x = 364,184.81

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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.