Home / 1,325,517.60-1,829,235.12-721,905.12

Finding the Fourth Proportional to 1,325,517.60, 1,829,235.12 and 721,905.12

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Solution

The fourth proportional to 1,325,517.60, 1,829,235.12 and 721,905.12 is: 996,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,517.60 : 1,829,235.12 = 721,905.12 : x
  2. Step 2: Convert to fraction form
    1,325,517.60/1,829,235.12 = 721,905.12/x
  3. Step 3: Cross multiply
    1,325,517.60x = 1,829,235.12 × 721,905.12
  4. Step 4: Simplify right side
    1,325,517.60x = 1,320,534,198,811.81
  5. Step 5: Solve for x
    x = 1,320,534,198,811.81/1,325,517.60
  6. Step 6: Final answer
    x = 996,240.41

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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.