Home / 991,453.32-1,368,214.20-538,744.32

Finding the Fourth Proportional to 991,453.32, 1,368,214.20 and 538,744.32

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Solution

The fourth proportional to 991,453.32, 1,368,214.20 and 538,744.32 is: 743,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,453.32 : 1,368,214.20 = 538,744.32 : x
  2. Step 2: Convert to fraction form
    991,453.32/1,368,214.20 = 538,744.32/x
  3. Step 3: Cross multiply
    991,453.32x = 1,368,214.20 × 538,744.32
  4. Step 4: Simplify right side
    991,453.32x = 737,117,628,793.34
  5. Step 5: Solve for x
    x = 737,117,628,793.34/991,453.32
  6. Step 6: Final answer
    x = 743,471.84

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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.