Home / 457,242.12-631,159.75-372,211.56

Finding the Fourth Proportional to 457,242.12, 631,159.75 and 372,211.56

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Solution

The fourth proportional to 457,242.12, 631,159.75 and 372,211.56 is: 513,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,242.12 : 631,159.75 = 372,211.56 : x
  2. Step 2: Convert to fraction form
    457,242.12/631,159.75 = 372,211.56/x
  3. Step 3: Cross multiply
    457,242.12x = 631,159.75 × 372,211.56
  4. Step 4: Simplify right side
    457,242.12x = 234,924,955,156.71
  5. Step 5: Solve for x
    x = 234,924,955,156.71/457,242.12
  6. Step 6: Final answer
    x = 513,786.78

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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.