Home / 1,188,367.62-1,640,156.94-705,199.18

Finding the Fourth Proportional to 1,188,367.62, 1,640,156.94 and 705,199.18

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Solution

The fourth proportional to 1,188,367.62, 1,640,156.94 and 705,199.18 is: 973,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,367.62 : 1,640,156.94 = 705,199.18 : x
  2. Step 2: Convert to fraction form
    1,188,367.62/1,640,156.94 = 705,199.18/x
  3. Step 3: Cross multiply
    1,188,367.62x = 1,640,156.94 × 705,199.18
  4. Step 4: Simplify right side
    1,188,367.62x = 1,156,637,329,159.31
  5. Step 5: Solve for x
    x = 1,156,637,329,159.31/1,188,367.62
  6. Step 6: Final answer
    x = 973,299.26

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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.