Home / 1,812,365.20-2,501,128.12-996,630.80

Finding the Fourth Proportional to 1,812,365.20, 2,501,128.12 and 996,630.80

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Solution

The fourth proportional to 1,812,365.20, 2,501,128.12 and 996,630.80 is: 1,375,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,365.20 : 2,501,128.12 = 996,630.80 : x
  2. Step 2: Convert to fraction form
    1,812,365.20/2,501,128.12 = 996,630.80/x
  3. Step 3: Cross multiply
    1,812,365.20x = 2,501,128.12 × 996,630.80
  4. Step 4: Simplify right side
    1,812,365.20x = 2,492,701,319,138.10
  5. Step 5: Solve for x
    x = 2,492,701,319,138.10/1,812,365.20
  6. Step 6: Final answer
    x = 1,375,385.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.