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Finding the Fourth Proportional to 631,364.16, 871,268.22 and 344,885.52

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Solution

The fourth proportional to 631,364.16, 871,268.22 and 344,885.52 is: 475,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,364.16 : 871,268.22 = 344,885.52 : x
  2. Step 2: Convert to fraction form
    631,364.16/871,268.22 = 344,885.52/x
  3. Step 3: Cross multiply
    631,364.16x = 871,268.22 × 344,885.52
  4. Step 4: Simplify right side
    631,364.16x = 300,487,793,114.17
  5. Step 5: Solve for x
    x = 300,487,793,114.17/631,364.16
  6. Step 6: Final answer
    x = 475,934.19

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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.