Home / 4,287,257.28-6,431,022-2,156,176.80

Finding the Fourth Proportional to 4,287,257.28, 6,431,022 and 2,156,176.80

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Solution

The fourth proportional to 4,287,257.28, 6,431,022 and 2,156,176.80 is: 3,234,333.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287,257.28 : 6,431,022 = 2,156,176.80 : x
  2. Step 2: Convert to fraction form
    4,287,257.28/6,431,022 = 2,156,176.80/x
  3. Step 3: Cross multiply
    4,287,257.28x = 6,431,022 × 2,156,176.80
  4. Step 4: Simplify right side
    4,287,257.28x = 13,866,420,436,689.60
  5. Step 5: Solve for x
    x = 13,866,420,436,689.60/4,287,257.28
  6. Step 6: Final answer
    x = 3,234,333.64

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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.