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Finding the Fourth Proportional to 579,618, 799,721.46 and 334,542.78

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Solution

The fourth proportional to 579,618, 799,721.46 and 334,542.78 is: 461,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,618 : 799,721.46 = 334,542.78 : x
  2. Step 2: Convert to fraction form
    579,618/799,721.46 = 334,542.78/x
  3. Step 3: Cross multiply
    579,618x = 799,721.46 × 334,542.78
  4. Step 4: Simplify right side
    579,618x = 267,541,040,454.06
  5. Step 5: Solve for x
    x = 267,541,040,454.06/579,618
  6. Step 6: Final answer
    x = 461,581.66

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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.