Home / 1,375,069.56-1,897,559.75-763,220.78

Finding the Fourth Proportional to 1,375,069.56, 1,897,559.75 and 763,220.78

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Solution

The fourth proportional to 1,375,069.56, 1,897,559.75 and 763,220.78 is: 1,053,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,069.56 : 1,897,559.75 = 763,220.78 : x
  2. Step 2: Convert to fraction form
    1,375,069.56/1,897,559.75 = 763,220.78/x
  3. Step 3: Cross multiply
    1,375,069.56x = 1,897,559.75 × 763,220.78
  4. Step 4: Simplify right side
    1,375,069.56x = 1,448,257,019,187.70
  5. Step 5: Solve for x
    x = 1,448,257,019,187.70/1,375,069.56
  6. Step 6: Final answer
    x = 1,053,224.55

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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.