Home / 1,897,431.20-2,839,234.80-1,399,767.20

Finding the Fourth Proportional to 1,897,431.20, 2,839,234.80 and 1,399,767.20

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Solution

The fourth proportional to 1,897,431.20, 2,839,234.80 and 1,399,767.20 is: 2,094,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897,431.20 : 2,839,234.80 = 1,399,767.20 : x
  2. Step 2: Convert to fraction form
    1,897,431.20/2,839,234.80 = 1,399,767.20/x
  3. Step 3: Cross multiply
    1,897,431.20x = 2,839,234.80 × 1,399,767.20
  4. Step 4: Simplify right side
    1,897,431.20x = 3,974,267,746,138.56
  5. Step 5: Solve for x
    x = 3,974,267,746,138.56/1,897,431.20
  6. Step 6: Final answer
    x = 2,094,551.70

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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.