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Finding the Fourth Proportional to 476,662.09, 657,799.10 and 261,807.16

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Solution

The fourth proportional to 476,662.09, 657,799.10 and 261,807.16 is: 361,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,662.09 : 657,799.10 = 261,807.16 : x
  2. Step 2: Convert to fraction form
    476,662.09/657,799.10 = 261,807.16/x
  3. Step 3: Cross multiply
    476,662.09x = 657,799.10 × 261,807.16
  4. Step 4: Simplify right side
    476,662.09x = 172,216,514,221.56
  5. Step 5: Solve for x
    x = 172,216,514,221.56/476,662.09
  6. Step 6: Final answer
    x = 361,296.86

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1.5x scale

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.