Home / 991,273.60-1,367,959.04-538,564.48

Finding the Fourth Proportional to 991,273.60, 1,367,959.04 and 538,564.48

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Solution

The fourth proportional to 991,273.60, 1,367,959.04 and 538,564.48 is: 743,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,273.60 : 1,367,959.04 = 538,564.48 : x
  2. Step 2: Convert to fraction form
    991,273.60/1,367,959.04 = 538,564.48/x
  3. Step 3: Cross multiply
    991,273.60x = 1,367,959.04 × 538,564.48
  4. Step 4: Simplify right side
    991,273.60x = 736,734,149,038.90
  5. Step 5: Solve for x
    x = 736,734,149,038.90/991,273.60
  6. Step 6: Final answer
    x = 743,219.78

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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.