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Finding the Fourth Proportional to 631,364.66, 871,268.91 and 344,886.02

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Solution

The fourth proportional to 631,364.66, 871,268.91 and 344,886.02 is: 475,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,364.66 : 871,268.91 = 344,886.02 : x
  2. Step 2: Convert to fraction form
    631,364.66/871,268.91 = 344,886.02/x
  3. Step 3: Cross multiply
    631,364.66x = 871,268.91 × 344,886.02
  4. Step 4: Simplify right side
    631,364.66x = 300,488,466,719.64
  5. Step 5: Solve for x
    x = 300,488,466,719.64/631,364.66
  6. Step 6: Final answer
    x = 475,934.88

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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.