Home / 1,100,764.28-1,519,070.15-665,121.17

Finding the Fourth Proportional to 1,100,764.28, 1,519,070.15 and 665,121.17

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Solution

The fourth proportional to 1,100,764.28, 1,519,070.15 and 665,121.17 is: 917,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,764.28 : 1,519,070.15 = 665,121.17 : x
  2. Step 2: Convert to fraction form
    1,100,764.28/1,519,070.15 = 665,121.17/x
  3. Step 3: Cross multiply
    1,100,764.28x = 1,519,070.15 × 665,121.17
  4. Step 4: Simplify right side
    1,100,764.28x = 1,010,365,720,940.55
  5. Step 5: Solve for x
    x = 1,010,365,720,940.55/1,100,764.28
  6. Step 6: Final answer
    x = 917,876.55

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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.