Home / 1,131,064.62-1,560,907.18-665,834.55

Finding the Fourth Proportional to 1,131,064.62, 1,560,907.18 and 665,834.55

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Solution

The fourth proportional to 1,131,064.62, 1,560,907.18 and 665,834.55 is: 918,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,064.62 : 1,560,907.18 = 665,834.55 : x
  2. Step 2: Convert to fraction form
    1,131,064.62/1,560,907.18 = 665,834.55/x
  3. Step 3: Cross multiply
    1,131,064.62x = 1,560,907.18 × 665,834.55
  4. Step 4: Simplify right side
    1,131,064.62x = 1,039,305,929,787.07
  5. Step 5: Solve for x
    x = 1,039,305,929,787.07/1,131,064.62
  6. Step 6: Final answer
    x = 918,874.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.