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Finding the Fourth Proportional to 557,532.60, 769,460.94 and 331,179

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Solution

The fourth proportional to 557,532.60, 769,460.94 and 331,179 is: 457,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,532.60 : 769,460.94 = 331,179 : x
  2. Step 2: Convert to fraction form
    557,532.60/769,460.94 = 331,179/x
  3. Step 3: Cross multiply
    557,532.60x = 769,460.94 × 331,179
  4. Step 4: Simplify right side
    557,532.60x = 254,829,304,648.26
  5. Step 5: Solve for x
    x = 254,829,304,648.26/557,532.60
  6. Step 6: Final answer
    x = 457,066.20

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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.