Home / 1,107,371.80-1,657,121.10-768,824.20

Finding the Fourth Proportional to 1,107,371.80, 1,657,121.10 and 768,824.20

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Solution

The fourth proportional to 1,107,371.80, 1,657,121.10 and 768,824.20 is: 1,150,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,371.80 : 1,657,121.10 = 768,824.20 : x
  2. Step 2: Convert to fraction form
    1,107,371.80/1,657,121.10 = 768,824.20/x
  3. Step 3: Cross multiply
    1,107,371.80x = 1,657,121.10 × 768,824.20
  4. Step 4: Simplify right side
    1,107,371.80x = 1,274,034,804,010.62
  5. Step 5: Solve for x
    x = 1,274,034,804,010.62/1,107,371.80
  6. Step 6: Final answer
    x = 1,150,503.20

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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.