Home / 1,325,513.60-1,829,229.60-721,901.12

Finding the Fourth Proportional to 1,325,513.60, 1,829,229.60 and 721,901.12

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Solution

The fourth proportional to 1,325,513.60, 1,829,229.60 and 721,901.12 is: 996,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,513.60 : 1,829,229.60 = 721,901.12 : x
  2. Step 2: Convert to fraction form
    1,325,513.60/1,829,229.60 = 721,901.12/x
  3. Step 3: Cross multiply
    1,325,513.60x = 1,829,229.60 × 721,901.12
  4. Step 4: Simplify right side
    1,325,513.60x = 1,320,522,896,977.15
  5. Step 5: Solve for x
    x = 1,320,522,896,977.15/1,325,513.60
  6. Step 6: Final answer
    x = 996,234.89

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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.