Home / 3,586,139.20-5,379,208.80-1,311,659.20

Finding the Fourth Proportional to 3,586,139.20, 5,379,208.80 and 1,311,659.20

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Solution

The fourth proportional to 3,586,139.20, 5,379,208.80 and 1,311,659.20 is: 1,967,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586,139.20 : 5,379,208.80 = 1,311,659.20 : x
  2. Step 2: Convert to fraction form
    3,586,139.20/5,379,208.80 = 1,311,659.20/x
  3. Step 3: Cross multiply
    3,586,139.20x = 5,379,208.80 × 1,311,659.20
  4. Step 4: Simplify right side
    3,586,139.20x = 7,055,688,711,240.96
  5. Step 5: Solve for x
    x = 7,055,688,711,240.96/3,586,139.20
  6. Step 6: Final answer
    x = 1,967,488.80

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Similar ratio
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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.