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Finding the Fourth Proportional to 457,698.92, 631,661.76 and 253,813.68

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Solution

The fourth proportional to 457,698.92, 631,661.76 and 253,813.68 is: 350,283.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,698.92 : 631,661.76 = 253,813.68 : x
  2. Step 2: Convert to fraction form
    457,698.92/631,661.76 = 253,813.68/x
  3. Step 3: Cross multiply
    457,698.92x = 631,661.76 × 253,813.68
  4. Step 4: Simplify right side
    457,698.92x = 160,324,395,820.88
  5. Step 5: Solve for x
    x = 160,324,395,820.88/457,698.92
  6. Step 6: Final answer
    x = 350,283.54

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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.