Home / 5,085,230.28-7,015,640-2,879,586.78

Finding the Fourth Proportional to 5,085,230.28, 7,015,640 and 2,879,586.78

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Solution

The fourth proportional to 5,085,230.28, 7,015,640 and 2,879,586.78 is: 3,972,709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085,230.28 : 7,015,640 = 2,879,586.78 : x
  2. Step 2: Convert to fraction form
    5,085,230.28/7,015,640 = 2,879,586.78/x
  3. Step 3: Cross multiply
    5,085,230.28x = 7,015,640 × 2,879,586.78
  4. Step 4: Simplify right side
    5,085,230.28x = 20,202,144,197,239.20
  5. Step 5: Solve for x
    x = 20,202,144,197,239.20/5,085,230.28
  6. Step 6: Final answer
    x = 3,972,709.81

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1.5x scale

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.