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Finding the Fourth Proportional to 631,171.66, 871,023.82 and 344,700.18

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Solution

The fourth proportional to 631,171.66, 871,023.82 and 344,700.18 is: 475,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,171.66 : 871,023.82 = 344,700.18 : x
  2. Step 2: Convert to fraction form
    631,171.66/871,023.82 = 344,700.18/x
  3. Step 3: Cross multiply
    631,171.66x = 871,023.82 × 344,700.18
  4. Step 4: Simplify right side
    631,171.66x = 300,242,067,538.29
  5. Step 5: Solve for x
    x = 300,242,067,538.29/631,171.66
  6. Step 6: Final answer
    x = 475,690.03

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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.