Home / 865,006.55-1,297,787.45-415,760

Finding the Fourth Proportional to 865,006.55, 1,297,787.45 and 415,760

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Solution

The fourth proportional to 865,006.55, 1,297,787.45 and 415,760 is: 623,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,006.55 : 1,297,787.45 = 415,760 : x
  2. Step 2: Convert to fraction form
    865,006.55/1,297,787.45 = 415,760/x
  3. Step 3: Cross multiply
    865,006.55x = 1,297,787.45 × 415,760
  4. Step 4: Simplify right side
    865,006.55x = 539,568,110,212
  5. Step 5: Solve for x
    x = 539,568,110,212/865,006.55
  6. Step 6: Final answer
    x = 623,773.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.