Home / 991,475.58-1,368,236.43-538,765.50

Finding the Fourth Proportional to 991,475.58, 1,368,236.43 and 538,765.50

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Solution

The fourth proportional to 991,475.58, 1,368,236.43 and 538,765.50 is: 743,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,475.58 : 1,368,236.43 = 538,765.50 : x
  2. Step 2: Convert to fraction form
    991,475.58/1,368,236.43 = 538,765.50/x
  3. Step 3: Cross multiply
    991,475.58x = 1,368,236.43 × 538,765.50
  4. Step 4: Simplify right side
    991,475.58x = 737,158,584,327.17
  5. Step 5: Solve for x
    x = 737,158,584,327.17/991,475.58
  6. Step 6: Final answer
    x = 743,496.46

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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.