Home / 807,540.60-1,211,019.30-408,048.60

Finding the Fourth Proportional to 807,540.60, 1,211,019.30 and 408,048.60

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Solution

The fourth proportional to 807,540.60, 1,211,019.30 and 408,048.60 is: 611,925.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,540.60 : 1,211,019.30 = 408,048.60 : x
  2. Step 2: Convert to fraction form
    807,540.60/1,211,019.30 = 408,048.60/x
  3. Step 3: Cross multiply
    807,540.60x = 1,211,019.30 × 408,048.60
  4. Step 4: Simplify right side
    807,540.60x = 494,154,729,937.98
  5. Step 5: Solve for x
    x = 494,154,729,937.98/807,540.60
  6. Step 6: Final answer
    x = 611,925.56

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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.