Home / 991,173.60-1,367,821.20-538,464.96

Finding the Fourth Proportional to 991,173.60, 1,367,821.20 and 538,464.96

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Solution

The fourth proportional to 991,173.60, 1,367,821.20 and 538,464.96 is: 743,082.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,173.60 : 1,367,821.20 = 538,464.96 : x
  2. Step 2: Convert to fraction form
    991,173.60/1,367,821.20 = 538,464.96/x
  3. Step 3: Cross multiply
    991,173.60x = 1,367,821.20 × 538,464.96
  4. Step 4: Simplify right side
    991,173.60x = 736,523,787,745.15
  5. Step 5: Solve for x
    x = 736,523,787,745.15/991,173.60
  6. Step 6: Final answer
    x = 743,082.53

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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.