Home / 674,728.03-1,011,592.07-408,425.55

Finding the Fourth Proportional to 674,728.03, 1,011,592.07 and 408,425.55

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Solution

The fourth proportional to 674,728.03, 1,011,592.07 and 408,425.55 is: 612,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,728.03 : 1,011,592.07 = 408,425.55 : x
  2. Step 2: Convert to fraction form
    674,728.03/1,011,592.07 = 408,425.55/x
  3. Step 3: Cross multiply
    674,728.03x = 1,011,592.07 × 408,425.55
  4. Step 4: Simplify right side
    674,728.03x = 413,160,047,565.39
  5. Step 5: Solve for x
    x = 413,160,047,565.39/674,728.03
  6. Step 6: Final answer
    x = 612,335.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.