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Finding the Fourth Proportional to 457,845, 631,865.06 and 256,679.88

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Solution

The fourth proportional to 457,845, 631,865.06 and 256,679.88 is: 354,240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,845 : 631,865.06 = 256,679.88 : x
  2. Step 2: Convert to fraction form
    457,845/631,865.06 = 256,679.88/x
  3. Step 3: Cross multiply
    457,845x = 631,865.06 × 256,679.88
  4. Step 4: Simplify right side
    457,845x = 162,187,047,776.99
  5. Step 5: Solve for x
    x = 162,187,047,776.99/457,845
  6. Step 6: Final answer
    x = 354,240.08

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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.