Home / 1,143,278.70-1,714,919.27-290,414.31

Finding the Fourth Proportional to 1,143,278.70, 1,714,919.27 and 290,414.31

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Solution

The fourth proportional to 1,143,278.70, 1,714,919.27 and 290,414.31 is: 435,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,278.70 : 1,714,919.27 = 290,414.31 : x
  2. Step 2: Convert to fraction form
    1,143,278.70/1,714,919.27 = 290,414.31/x
  3. Step 3: Cross multiply
    1,143,278.70x = 1,714,919.27 × 290,414.31
  4. Step 4: Simplify right side
    1,143,278.70x = 498,037,099,082.95
  5. Step 5: Solve for x
    x = 498,037,099,082.95/1,143,278.70
  6. Step 6: Final answer
    x = 435,621.78

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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.