Home / 991,159.60-1,367,801.88-538,450.96

Finding the Fourth Proportional to 991,159.60, 1,367,801.88 and 538,450.96

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Solution

The fourth proportional to 991,159.60, 1,367,801.88 and 538,450.96 is: 743,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,159.60 : 1,367,801.88 = 538,450.96 : x
  2. Step 2: Convert to fraction form
    991,159.60/1,367,801.88 = 538,450.96/x
  3. Step 3: Cross multiply
    991,159.60x = 1,367,801.88 × 538,450.96
  4. Step 4: Simplify right side
    991,159.60x = 736,494,235,375.81
  5. Step 5: Solve for x
    x = 736,494,235,375.81/991,159.60
  6. Step 6: Final answer
    x = 743,063.21

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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.