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Finding the Fourth Proportional to 404,468.64, 557,830.80 and 303,691.68

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Solution

The fourth proportional to 404,468.64, 557,830.80 and 303,691.68 is: 418,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,468.64 : 557,830.80 = 303,691.68 : x
  2. Step 2: Convert to fraction form
    404,468.64/557,830.80 = 303,691.68/x
  3. Step 3: Cross multiply
    404,468.64x = 557,830.80 × 303,691.68
  4. Step 4: Simplify right side
    404,468.64x = 169,408,572,807.74
  5. Step 5: Solve for x
    x = 169,408,572,807.74/404,468.64
  6. Step 6: Final answer
    x = 418,842.29

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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.