Home / 552,719.36-762,743.89-311,001.80

Finding the Fourth Proportional to 552,719.36, 762,743.89 and 311,001.80

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Solution

The fourth proportional to 552,719.36, 762,743.89 and 311,001.80 is: 429,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,719.36 : 762,743.89 = 311,001.80 : x
  2. Step 2: Convert to fraction form
    552,719.36/762,743.89 = 311,001.80/x
  3. Step 3: Cross multiply
    552,719.36x = 762,743.89 × 311,001.80
  4. Step 4: Simplify right side
    552,719.36x = 237,214,717,360.27
  5. Step 5: Solve for x
    x = 237,214,717,360.27/552,719.36
  6. Step 6: Final answer
    x = 429,177.51

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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.