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Finding the Fourth Proportional to 478,651.46, 660,539.02 and 263,791.53

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Solution

The fourth proportional to 478,651.46, 660,539.02 and 263,791.53 is: 364,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,651.46 : 660,539.02 = 263,791.53 : x
  2. Step 2: Convert to fraction form
    478,651.46/660,539.02 = 263,791.53/x
  3. Step 3: Cross multiply
    478,651.46x = 660,539.02 × 263,791.53
  4. Step 4: Simplify right side
    478,651.46x = 174,244,598,710.50
  5. Step 5: Solve for x
    x = 174,244,598,710.50/478,651.46
  6. Step 6: Final answer
    x = 364,032.31

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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.