Home / 1,193,881.20-1,792,204.20-721,100.40

Finding the Fourth Proportional to 1,193,881.20, 1,792,204.20 and 721,100.40

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Solution

The fourth proportional to 1,193,881.20, 1,792,204.20 and 721,100.40 is: 1,082,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,881.20 : 1,792,204.20 = 721,100.40 : x
  2. Step 2: Convert to fraction form
    1,193,881.20/1,792,204.20 = 721,100.40/x
  3. Step 3: Cross multiply
    1,193,881.20x = 1,792,204.20 × 721,100.40
  4. Step 4: Simplify right side
    1,193,881.20x = 1,292,359,165,501.68
  5. Step 5: Solve for x
    x = 1,292,359,165,501.68/1,193,881.20
  6. Step 6: Final answer
    x = 1,082,485.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.