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Finding the Fourth Proportional to 631,253.98, 871,158.81 and 344,776.42

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Solution

The fourth proportional to 631,253.98, 871,158.81 and 344,776.42 is: 475,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,253.98 : 871,158.81 = 344,776.42 : x
  2. Step 2: Convert to fraction form
    631,253.98/871,158.81 = 344,776.42/x
  3. Step 3: Cross multiply
    631,253.98x = 871,158.81 × 344,776.42
  4. Step 4: Simplify right side
    631,253.98x = 300,355,015,763.26
  5. Step 5: Solve for x
    x = 300,355,015,763.26/631,253.98
  6. Step 6: Final answer
    x = 475,806.93

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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.