Home / 1,375,792.20-2,059,541.10-1,209,904.20

Finding the Fourth Proportional to 1,375,792.20, 2,059,541.10 and 1,209,904.20

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Solution

The fourth proportional to 1,375,792.20, 2,059,541.10 and 1,209,904.20 is: 1,811,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,792.20 : 2,059,541.10 = 1,209,904.20 : x
  2. Step 2: Convert to fraction form
    1,375,792.20/2,059,541.10 = 1,209,904.20/x
  3. Step 3: Cross multiply
    1,375,792.20x = 2,059,541.10 × 1,209,904.20
  4. Step 4: Simplify right side
    1,375,792.20x = 2,491,847,426,962.62
  5. Step 5: Solve for x
    x = 2,491,847,426,962.62/1,375,792.20
  6. Step 6: Final answer
    x = 1,811,209.15

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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.