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Finding the Fourth Proportional to 457,774.92, 631,722.76 and 253,826.20

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Solution

The fourth proportional to 457,774.92, 631,722.76 and 253,826.20 is: 350,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,774.92 : 631,722.76 = 253,826.20 : x
  2. Step 2: Convert to fraction form
    457,774.92/631,722.76 = 253,826.20/x
  3. Step 3: Cross multiply
    457,774.92x = 631,722.76 × 253,826.20
  4. Step 4: Simplify right side
    457,774.92x = 160,347,787,624.31
  5. Step 5: Solve for x
    x = 160,347,787,624.31/457,774.92
  6. Step 6: Final answer
    x = 350,276.48

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Similar ratio
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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.