Home / 631,171.13-871,019.37-344,691.23

Finding the Fourth Proportional to 631,171.13, 871,019.37 and 344,691.23

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Solution

The fourth proportional to 631,171.13, 871,019.37 and 344,691.23 is: 475,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,171.13 : 871,019.37 = 344,691.23 : x
  2. Step 2: Convert to fraction form
    631,171.13/871,019.37 = 344,691.23/x
  3. Step 3: Cross multiply
    631,171.13x = 871,019.37 × 344,691.23
  4. Step 4: Simplify right side
    631,171.13x = 300,232,733,644.03
  5. Step 5: Solve for x
    x = 300,232,733,644.03/631,171.13
  6. Step 6: Final answer
    x = 475,675.65

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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.