Home / 1,339,809.80-2,007,381.90-866,251.40

Finding the Fourth Proportional to 1,339,809.80, 2,007,381.90 and 866,251.40

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Solution

The fourth proportional to 1,339,809.80, 2,007,381.90 and 866,251.40 is: 1,297,868.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,809.80 : 2,007,381.90 = 866,251.40 : x
  2. Step 2: Convert to fraction form
    1,339,809.80/2,007,381.90 = 866,251.40/x
  3. Step 3: Cross multiply
    1,339,809.80x = 2,007,381.90 × 866,251.40
  4. Step 4: Simplify right side
    1,339,809.80x = 1,738,897,381,209.66
  5. Step 5: Solve for x
    x = 1,738,897,381,209.66/1,339,809.80
  6. Step 6: Final answer
    x = 1,297,868.83

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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.