Home / 1,299,409.38-1,949,297.16-400,924.20

Finding the Fourth Proportional to 1,299,409.38, 1,949,297.16 and 400,924.20

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Solution

The fourth proportional to 1,299,409.38, 1,949,297.16 and 400,924.20 is: 601,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,409.38 : 1,949,297.16 = 400,924.20 : x
  2. Step 2: Convert to fraction form
    1,299,409.38/1,949,297.16 = 400,924.20/x
  3. Step 3: Cross multiply
    1,299,409.38x = 1,949,297.16 × 400,924.20
  4. Step 4: Simplify right side
    1,299,409.38x = 781,520,404,435.27
  5. Step 5: Solve for x
    x = 781,520,404,435.27/1,299,409.38
  6. Step 6: Final answer
    x = 601,442.79

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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.