Home / 800,876.49-1,105,199.15-438,293.76

Finding the Fourth Proportional to 800,876.49, 1,105,199.15 and 438,293.76

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Solution

The fourth proportional to 800,876.49, 1,105,199.15 and 438,293.76 is: 604,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,876.49 : 1,105,199.15 = 438,293.76 : x
  2. Step 2: Convert to fraction form
    800,876.49/1,105,199.15 = 438,293.76/x
  3. Step 3: Cross multiply
    800,876.49x = 1,105,199.15 × 438,293.76
  4. Step 4: Simplify right side
    800,876.49x = 484,401,891,002.30
  5. Step 5: Solve for x
    x = 484,401,891,002.30/800,876.49
  6. Step 6: Final answer
    x = 604,839.69

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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.