Home / 663,283.20-915,327.36-361,474.56

Finding the Fourth Proportional to 663,283.20, 915,327.36 and 361,474.56

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Solution

The fourth proportional to 663,283.20, 915,327.36 and 361,474.56 is: 498,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,283.20 : 915,327.36 = 361,474.56 : x
  2. Step 2: Convert to fraction form
    663,283.20/915,327.36 = 361,474.56/x
  3. Step 3: Cross multiply
    663,283.20x = 915,327.36 × 361,474.56
  4. Step 4: Simplify right side
    663,283.20x = 330,867,554,711.96
  5. Step 5: Solve for x
    x = 330,867,554,711.96/663,283.20
  6. Step 6: Final answer
    x = 498,833.01

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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.