Home / 1,431,155.20-2,146,732.80-871,283.20

Finding the Fourth Proportional to 1,431,155.20, 2,146,732.80 and 871,283.20

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Solution

The fourth proportional to 1,431,155.20, 2,146,732.80 and 871,283.20 is: 1,306,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,155.20 : 2,146,732.80 = 871,283.20 : x
  2. Step 2: Convert to fraction form
    1,431,155.20/2,146,732.80 = 871,283.20/x
  3. Step 3: Cross multiply
    1,431,155.20x = 2,146,732.80 × 871,283.20
  4. Step 4: Simplify right side
    1,431,155.20x = 1,870,412,223,528.96
  5. Step 5: Solve for x
    x = 1,870,412,223,528.96/1,431,155.20
  6. Step 6: Final answer
    x = 1,306,924.80

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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.