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Finding the Fourth Proportional to 457,784.91, 631,750.76 and 253,844.42

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Solution

The fourth proportional to 457,784.91, 631,750.76 and 253,844.42 is: 350,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,784.91 : 631,750.76 = 253,844.42 : x
  2. Step 2: Convert to fraction form
    457,784.91/631,750.76 = 253,844.42/x
  3. Step 3: Cross multiply
    457,784.91x = 631,750.76 × 253,844.42
  4. Step 4: Simplify right side
    457,784.91x = 160,366,407,470.75
  5. Step 5: Solve for x
    x = 160,366,407,470.75/457,784.91
  6. Step 6: Final answer
    x = 350,309.51

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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.