Home / 743,881.22-1,115,401.85-680,403.55

Finding the Fourth Proportional to 743,881.22, 1,115,401.85 and 680,403.55

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Solution

The fourth proportional to 743,881.22, 1,115,401.85 and 680,403.55 is: 1,020,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,881.22 : 1,115,401.85 = 680,403.55 : x
  2. Step 2: Convert to fraction form
    743,881.22/1,115,401.85 = 680,403.55/x
  3. Step 3: Cross multiply
    743,881.22x = 1,115,401.85 × 680,403.55
  4. Step 4: Simplify right side
    743,881.22x = 758,923,369,437.54
  5. Step 5: Solve for x
    x = 758,923,369,437.54/743,881.22
  6. Step 6: Final answer
    x = 1,020,221.17

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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.