Home / 631,366.20-871,304.04-344,890.98

Finding the Fourth Proportional to 631,366.20, 871,304.04 and 344,890.98

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Solution

The fourth proportional to 631,366.20, 871,304.04 and 344,890.98 is: 475,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,366.20 : 871,304.04 = 344,890.98 : x
  2. Step 2: Convert to fraction form
    631,366.20/871,304.04 = 344,890.98/x
  3. Step 3: Cross multiply
    631,366.20x = 871,304.04 × 344,890.98
  4. Step 4: Simplify right side
    631,366.20x = 300,504,904,233.56
  5. Step 5: Solve for x
    x = 300,504,904,233.56/631,366.20
  6. Step 6: Final answer
    x = 475,959.76

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Double scale
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1.5x scale

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.