Home / 485,046.73-669,364.10-281,216.00

Finding the Fourth Proportional to 485,046.73, 669,364.10 and 281,216.00

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Solution

The fourth proportional to 485,046.73, 669,364.10 and 281,216.00 is: 388,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,046.73 : 669,364.10 = 281,216.00 : x
  2. Step 2: Convert to fraction form
    485,046.73/669,364.10 = 281,216.00/x
  3. Step 3: Cross multiply
    485,046.73x = 669,364.10 × 281,216.00
  4. Step 4: Simplify right side
    485,046.73x = 188,235,897,649.33
  5. Step 5: Solve for x
    x = 188,235,897,649.33/485,046.73
  6. Step 6: Final answer
    x = 388,077.86

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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.