Home / 457,429.12-631,255.89-253,483.44

Finding the Fourth Proportional to 457,429.12, 631,255.89 and 253,483.44

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Solution

The fourth proportional to 457,429.12, 631,255.89 and 253,483.44 is: 349,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,429.12 : 631,255.89 = 253,483.44 : x
  2. Step 2: Convert to fraction form
    457,429.12/631,255.89 = 253,483.44/x
  3. Step 3: Cross multiply
    457,429.12x = 631,255.89 × 253,483.44
  4. Step 4: Simplify right side
    457,429.12x = 160,012,914,517.46
  5. Step 5: Solve for x
    x = 160,012,914,517.46/457,429.12
  6. Step 6: Final answer
    x = 349,809.20

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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.