Home / 811,204.38-1,215,948.50-305,546.56

Finding the Fourth Proportional to 811,204.38, 1,215,948.50 and 305,546.56

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Solution

The fourth proportional to 811,204.38, 1,215,948.50 and 305,546.56 is: 457,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,204.38 : 1,215,948.50 = 305,546.56 : x
  2. Step 2: Convert to fraction form
    811,204.38/1,215,948.50 = 305,546.56/x
  3. Step 3: Cross multiply
    811,204.38x = 1,215,948.50 × 305,546.56
  4. Step 4: Simplify right side
    811,204.38x = 371,528,881,312.16
  5. Step 5: Solve for x
    x = 371,528,881,312.16/811,204.38
  6. Step 6: Final answer
    x = 457,996.64

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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.