Home / 991,263.78-1,367,947.62-538,554.78

Finding the Fourth Proportional to 991,263.78, 1,367,947.62 and 538,554.78

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Solution

The fourth proportional to 991,263.78, 1,367,947.62 and 538,554.78 is: 743,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,263.78 : 1,367,947.62 = 538,554.78 : x
  2. Step 2: Convert to fraction form
    991,263.78/1,367,947.62 = 538,554.78/x
  3. Step 3: Cross multiply
    991,263.78x = 1,367,947.62 × 538,554.78
  4. Step 4: Simplify right side
    991,263.78x = 736,714,729,540.62
  5. Step 5: Solve for x
    x = 736,714,729,540.62/991,263.78
  6. Step 6: Final answer
    x = 743,207.55

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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.