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Finding the Fourth Proportional to 457,976.16, 632,244.48 and 355,772.64

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Solution

The fourth proportional to 457,976.16, 632,244.48 and 355,772.64 is: 491,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,976.16 : 632,244.48 = 355,772.64 : x
  2. Step 2: Convert to fraction form
    457,976.16/632,244.48 = 355,772.64/x
  3. Step 3: Cross multiply
    457,976.16x = 632,244.48 × 355,772.64
  4. Step 4: Simplify right side
    457,976.16x = 224,935,287,775.03
  5. Step 5: Solve for x
    x = 224,935,287,775.03/457,976.16
  6. Step 6: Final answer
    x = 491,150.65

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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.