Home / 1,188,366.87-1,640,155.91-705,198.42

Finding the Fourth Proportional to 1,188,366.87, 1,640,155.91 and 705,198.42

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Solution

The fourth proportional to 1,188,366.87, 1,640,155.91 and 705,198.42 is: 973,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,366.87 : 1,640,155.91 = 705,198.42 : x
  2. Step 2: Convert to fraction form
    1,188,366.87/1,640,155.91 = 705,198.42/x
  3. Step 3: Cross multiply
    1,188,366.87x = 1,640,155.91 × 705,198.42
  4. Step 4: Simplify right side
    1,188,366.87x = 1,156,635,352,759.67
  5. Step 5: Solve for x
    x = 1,156,635,352,759.67/1,188,366.87
  6. Step 6: Final answer
    x = 973,298.21

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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.