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Finding the Fourth Proportional to 631,333.44, 871,206.84 and 344,849.40

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Solution

The fourth proportional to 631,333.44, 871,206.84 and 344,849.40 is: 475,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,333.44 : 871,206.84 = 344,849.40 : x
  2. Step 2: Convert to fraction form
    631,333.44/871,206.84 = 344,849.40/x
  3. Step 3: Cross multiply
    631,333.44x = 871,206.84 × 344,849.40
  4. Step 4: Simplify right side
    631,333.44x = 300,435,156,049.90
  5. Step 5: Solve for x
    x = 300,435,156,049.90/631,333.44
  6. Step 6: Final answer
    x = 475,873.98

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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.