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Finding the Fourth Proportional to 626,845, 865,046.10 and 358,573

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Solution

The fourth proportional to 626,845, 865,046.10 and 358,573 is: 494,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,845 : 865,046.10 = 358,573 : x
  2. Step 2: Convert to fraction form
    626,845/865,046.10 = 358,573/x
  3. Step 3: Cross multiply
    626,845x = 865,046.10 × 358,573
  4. Step 4: Simplify right side
    626,845x = 310,182,175,215.30
  5. Step 5: Solve for x
    x = 310,182,175,215.30/626,845
  6. Step 6: Final answer
    x = 494,830.74

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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.