Home / 631,254.49-871,131.19-344,775.25

Finding the Fourth Proportional to 631,254.49, 871,131.19 and 344,775.25

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Solution

The fourth proportional to 631,254.49, 871,131.19 and 344,775.25 is: 475,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,254.49 : 871,131.19 = 344,775.25 : x
  2. Step 2: Convert to fraction form
    631,254.49/871,131.19 = 344,775.25/x
  3. Step 3: Cross multiply
    631,254.49x = 871,131.19 × 344,775.25
  4. Step 4: Simplify right side
    631,254.49x = 300,344,473,815.05
  5. Step 5: Solve for x
    x = 300,344,473,815.05/631,254.49
  6. Step 6: Final answer
    x = 475,789.84

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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.