Home / 1,188,367.80-1,640,157.20-705,199.37

Finding the Fourth Proportional to 1,188,367.80, 1,640,157.20 and 705,199.37

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Solution

The fourth proportional to 1,188,367.80, 1,640,157.20 and 705,199.37 is: 973,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,367.80 : 1,640,157.20 = 705,199.37 : x
  2. Step 2: Convert to fraction form
    1,188,367.80/1,640,157.20 = 705,199.37/x
  3. Step 3: Cross multiply
    1,188,367.80x = 1,640,157.20 × 705,199.37
  4. Step 4: Simplify right side
    1,188,367.80x = 1,156,637,812,414.18
  5. Step 5: Solve for x
    x = 1,156,637,812,414.18/1,188,367.80
  6. Step 6: Final answer
    x = 973,299.52

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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.