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Finding the Fourth Proportional to 616,676.49, 851,019.87 and 344,759.49

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Solution

The fourth proportional to 616,676.49, 851,019.87 and 344,759.49 is: 475,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,676.49 : 851,019.87 = 344,759.49 : x
  2. Step 2: Convert to fraction form
    616,676.49/851,019.87 = 344,759.49/x
  3. Step 3: Cross multiply
    616,676.49x = 851,019.87 × 344,759.49
  4. Step 4: Simplify right side
    616,676.49x = 293,397,175,714.64
  5. Step 5: Solve for x
    x = 293,397,175,714.64/616,676.49
  6. Step 6: Final answer
    x = 475,771.62

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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.