Home / 656,275.13-905,660.28-354,469.13

Finding the Fourth Proportional to 656,275.13, 905,660.28 and 354,469.13

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Solution

The fourth proportional to 656,275.13, 905,660.28 and 354,469.13 is: 489,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,275.13 : 905,660.28 = 354,469.13 : x
  2. Step 2: Convert to fraction form
    656,275.13/905,660.28 = 354,469.13/x
  3. Step 3: Cross multiply
    656,275.13x = 905,660.28 × 354,469.13
  4. Step 4: Simplify right side
    656,275.13x = 321,028,611,527.16
  5. Step 5: Solve for x
    x = 321,028,611,527.16/656,275.13
  6. Step 6: Final answer
    x = 489,167.72

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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.