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Finding the Fourth Proportional to 457,458.89, 631,337.22 and 253,553.94

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Solution

The fourth proportional to 457,458.89, 631,337.22 and 253,553.94 is: 349,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,458.89 : 631,337.22 = 253,553.94 : x
  2. Step 2: Convert to fraction form
    457,458.89/631,337.22 = 253,553.94/x
  3. Step 3: Cross multiply
    457,458.89x = 631,337.22 × 253,553.94
  4. Step 4: Simplify right side
    457,458.89x = 160,078,039,599.65
  5. Step 5: Solve for x
    x = 160,078,039,599.65/457,458.89
  6. Step 6: Final answer
    x = 349,928.80

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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.