Home / 3,120,478.20-4,680,717.30-876,616.20

Finding the Fourth Proportional to 3,120,478.20, 4,680,717.30 and 876,616.20

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Solution

The fourth proportional to 3,120,478.20, 4,680,717.30 and 876,616.20 is: 1,314,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,478.20 : 4,680,717.30 = 876,616.20 : x
  2. Step 2: Convert to fraction form
    3,120,478.20/4,680,717.30 = 876,616.20/x
  3. Step 3: Cross multiply
    3,120,478.20x = 4,680,717.30 × 876,616.20
  4. Step 4: Simplify right side
    3,120,478.20x = 4,103,192,612,800.26
  5. Step 5: Solve for x
    x = 4,103,192,612,800.26/3,120,478.20
  6. Step 6: Final answer
    x = 1,314,924.30

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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.