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Finding the Fourth Proportional to 526,578.66, 726,676.34 and 284,860.63

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Solution

The fourth proportional to 526,578.66, 726,676.34 and 284,860.63 is: 393,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,578.66 : 726,676.34 = 284,860.63 : x
  2. Step 2: Convert to fraction form
    526,578.66/726,676.34 = 284,860.63/x
  3. Step 3: Cross multiply
    526,578.66x = 726,676.34 × 284,860.63
  4. Step 4: Simplify right side
    526,578.66x = 207,001,480,018.49
  5. Step 5: Solve for x
    x = 207,001,480,018.49/526,578.66
  6. Step 6: Final answer
    x = 393,106.47

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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.