Home / 1,309,557.87-1,960,687.09-668,482.56

Finding the Fourth Proportional to 1,309,557.87, 1,960,687.09 and 668,482.56

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Solution

The fourth proportional to 1,309,557.87, 1,960,687.09 and 668,482.56 is: 1,000,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,557.87 : 1,960,687.09 = 668,482.56 : x
  2. Step 2: Convert to fraction form
    1,309,557.87/1,960,687.09 = 668,482.56/x
  3. Step 3: Cross multiply
    1,309,557.87x = 1,960,687.09 × 668,482.56
  4. Step 4: Simplify right side
    1,309,557.87x = 1,310,685,125,282.15
  5. Step 5: Solve for x
    x = 1,310,685,125,282.15/1,309,557.87
  6. Step 6: Final answer
    x = 1,000,860.79

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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.