Home / 481,086.02-663,909.54-311,615.12

Finding the Fourth Proportional to 481,086.02, 663,909.54 and 311,615.12

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Solution

The fourth proportional to 481,086.02, 663,909.54 and 311,615.12 is: 430,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,086.02 : 663,909.54 = 311,615.12 : x
  2. Step 2: Convert to fraction form
    481,086.02/663,909.54 = 311,615.12/x
  3. Step 3: Cross multiply
    481,086.02x = 663,909.54 × 311,615.12
  4. Step 4: Simplify right side
    481,086.02x = 206,884,250,976.25
  5. Step 5: Solve for x
    x = 206,884,250,976.25/481,086.02
  6. Step 6: Final answer
    x = 430,035.88

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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.