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Finding the Fourth Proportional to 635,873.37, 954,619.40 and 412,169.91

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Solution

The fourth proportional to 635,873.37, 954,619.40 and 412,169.91 is: 618,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,873.37 : 954,619.40 = 412,169.91 : x
  2. Step 2: Convert to fraction form
    635,873.37/954,619.40 = 412,169.91/x
  3. Step 3: Cross multiply
    635,873.37x = 954,619.40 × 412,169.91
  4. Step 4: Simplify right side
    635,873.37x = 393,465,385,348.31
  5. Step 5: Solve for x
    x = 393,465,385,348.31/635,873.37
  6. Step 6: Final answer
    x = 618,779.47

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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.