Home / 1,431,119.70-2,146,679.55-871,247.70

Finding the Fourth Proportional to 1,431,119.70, 2,146,679.55 and 871,247.70

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Solution

The fourth proportional to 1,431,119.70, 2,146,679.55 and 871,247.70 is: 1,306,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,119.70 : 2,146,679.55 = 871,247.70 : x
  2. Step 2: Convert to fraction form
    1,431,119.70/2,146,679.55 = 871,247.70/x
  3. Step 3: Cross multiply
    1,431,119.70x = 2,146,679.55 × 871,247.70
  4. Step 4: Simplify right side
    1,431,119.70x = 1,870,289,620,574.53
  5. Step 5: Solve for x
    x = 1,870,289,620,574.53/1,431,119.70
  6. Step 6: Final answer
    x = 1,306,871.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.