Home / 812,778.29-1,121,527.78-468,627.11

Finding the Fourth Proportional to 812,778.29, 1,121,527.78 and 468,627.11

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Solution

The fourth proportional to 812,778.29, 1,121,527.78 and 468,627.11 is: 646,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,778.29 : 1,121,527.78 = 468,627.11 : x
  2. Step 2: Convert to fraction form
    812,778.29/1,121,527.78 = 468,627.11/x
  3. Step 3: Cross multiply
    812,778.29x = 1,121,527.78 × 468,627.11
  4. Step 4: Simplify right side
    812,778.29x = 525,578,322,326.12
  5. Step 5: Solve for x
    x = 525,578,322,326.12/812,778.29
  6. Step 6: Final answer
    x = 646,644.14

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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.