Home / 457,265.28-631,244.88-304,557.60

Finding the Fourth Proportional to 457,265.28, 631,244.88 and 304,557.60

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Solution

The fourth proportional to 457,265.28, 631,244.88 and 304,557.60 is: 420,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,265.28 : 631,244.88 = 304,557.60 : x
  2. Step 2: Convert to fraction form
    457,265.28/631,244.88 = 304,557.60/x
  3. Step 3: Cross multiply
    457,265.28x = 631,244.88 × 304,557.60
  4. Step 4: Simplify right side
    457,265.28x = 192,250,425,665.09
  5. Step 5: Solve for x
    x = 192,250,425,665.09/457,265.28
  6. Step 6: Final answer
    x = 420,435.21

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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.