Home / 552,836.70-762,905.43-311,119.20

Finding the Fourth Proportional to 552,836.70, 762,905.43 and 311,119.20

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Solution

The fourth proportional to 552,836.70, 762,905.43 and 311,119.20 is: 429,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,836.70 : 762,905.43 = 311,119.20 : x
  2. Step 2: Convert to fraction form
    552,836.70/762,905.43 = 311,119.20/x
  3. Step 3: Cross multiply
    552,836.70x = 762,905.43 × 311,119.20
  4. Step 4: Simplify right side
    552,836.70x = 237,354,527,057.26
  5. Step 5: Solve for x
    x = 237,354,527,057.26/552,836.70
  6. Step 6: Final answer
    x = 429,339.31

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1.5x scale

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.