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Finding the Fourth Proportional to 463,514.64, 640,022.21 and 372,579.18

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Solution

The fourth proportional to 463,514.64, 640,022.21 and 372,579.18 is: 514,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,514.64 : 640,022.21 = 372,579.18 : x
  2. Step 2: Convert to fraction form
    463,514.64/640,022.21 = 372,579.18/x
  3. Step 3: Cross multiply
    463,514.64x = 640,022.21 × 372,579.18
  4. Step 4: Simplify right side
    463,514.64x = 238,458,950,183.59
  5. Step 5: Solve for x
    x = 238,458,950,183.59/463,514.64
  6. Step 6: Final answer
    x = 514,458.29

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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.