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Finding the Fourth Proportional to 476,662.59, 657,799.80 and 261,807.66

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Solution

The fourth proportional to 476,662.59, 657,799.80 and 261,807.66 is: 361,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,662.59 : 657,799.80 = 261,807.66 : x
  2. Step 2: Convert to fraction form
    476,662.59/657,799.80 = 261,807.66/x
  3. Step 3: Cross multiply
    476,662.59x = 657,799.80 × 261,807.66
  4. Step 4: Simplify right side
    476,662.59x = 172,217,026,386.47
  5. Step 5: Solve for x
    x = 172,217,026,386.47/476,662.59
  6. Step 6: Final answer
    x = 361,297.55

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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.