Home / 552,835.20-762,903.36-311,117.70

Finding the Fourth Proportional to 552,835.20, 762,903.36 and 311,117.70

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Solution

The fourth proportional to 552,835.20, 762,903.36 and 311,117.70 is: 429,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,835.20 : 762,903.36 = 311,117.70 : x
  2. Step 2: Convert to fraction form
    552,835.20/762,903.36 = 311,117.70/x
  3. Step 3: Cross multiply
    552,835.20x = 762,903.36 × 311,117.70
  4. Step 4: Simplify right side
    552,835.20x = 237,352,738,685.47
  5. Step 5: Solve for x
    x = 237,352,738,685.47/552,835.20
  6. Step 6: Final answer
    x = 429,337.24

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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.