Home / 2,989,369.20-4,483,616.40-859,231.20

Finding the Fourth Proportional to 2,989,369.20, 4,483,616.40 and 859,231.20

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Solution

The fourth proportional to 2,989,369.20, 4,483,616.40 and 859,231.20 is: 1,288,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,369.20 : 4,483,616.40 = 859,231.20 : x
  2. Step 2: Convert to fraction form
    2,989,369.20/4,483,616.40 = 859,231.20/x
  3. Step 3: Cross multiply
    2,989,369.20x = 4,483,616.40 × 859,231.20
  4. Step 4: Simplify right side
    2,989,369.20x = 3,852,463,099,711.68
  5. Step 5: Solve for x
    x = 3,852,463,099,711.68/2,989,369.20
  6. Step 6: Final answer
    x = 1,288,721.08

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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.