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Finding the Fourth Proportional to 457,858.34, 631,909.05 and 253,954.61

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Solution

The fourth proportional to 457,858.34, 631,909.05 and 253,954.61 is: 350,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,858.34 : 631,909.05 = 253,954.61 : x
  2. Step 2: Convert to fraction form
    457,858.34/631,909.05 = 253,954.61/x
  3. Step 3: Cross multiply
    457,858.34x = 631,909.05 × 253,954.61
  4. Step 4: Simplify right side
    457,858.34x = 160,476,216,348.22
  5. Step 5: Solve for x
    x = 160,476,216,348.22/457,858.34
  6. Step 6: Final answer
    x = 350,493.16

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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.