Home / 1,339,724.70-2,011,919.85-709,868.70

Finding the Fourth Proportional to 1,339,724.70, 2,011,919.85 and 709,868.70

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Solution

The fourth proportional to 1,339,724.70, 2,011,919.85 and 709,868.70 is: 1,066,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,724.70 : 2,011,919.85 = 709,868.70 : x
  2. Step 2: Convert to fraction form
    1,339,724.70/2,011,919.85 = 709,868.70/x
  3. Step 3: Cross multiply
    1,339,724.70x = 2,011,919.85 × 709,868.70
  4. Step 4: Simplify right side
    1,339,724.70x = 1,428,198,928,423.70
  5. Step 5: Solve for x
    x = 1,428,198,928,423.70/1,339,724.70
  6. Step 6: Final answer
    x = 1,066,039.11

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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.