Home / 3,391,439.60-5,087,159.40-866,961.20

Finding the Fourth Proportional to 3,391,439.60, 5,087,159.40 and 866,961.20

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Solution

The fourth proportional to 3,391,439.60, 5,087,159.40 and 866,961.20 is: 1,300,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391,439.60 : 5,087,159.40 = 866,961.20 : x
  2. Step 2: Convert to fraction form
    3,391,439.60/5,087,159.40 = 866,961.20/x
  3. Step 3: Cross multiply
    3,391,439.60x = 5,087,159.40 × 866,961.20
  4. Step 4: Simplify right side
    3,391,439.60x = 4,410,369,818,015.28
  5. Step 5: Solve for x
    x = 4,410,369,818,015.28/3,391,439.60
  6. Step 6: Final answer
    x = 1,300,441.80

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Similar ratio
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1.5x scale

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.