Home / 677,469.08-934,839.96-391,081.44

Finding the Fourth Proportional to 677,469.08, 934,839.96 and 391,081.44

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Solution

The fourth proportional to 677,469.08, 934,839.96 and 391,081.44 is: 539,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,469.08 : 934,839.96 = 391,081.44 : x
  2. Step 2: Convert to fraction form
    677,469.08/934,839.96 = 391,081.44/x
  3. Step 3: Cross multiply
    677,469.08x = 934,839.96 × 391,081.44
  4. Step 4: Simplify right side
    677,469.08x = 365,598,557,726.34
  5. Step 5: Solve for x
    x = 365,598,557,726.34/677,469.08
  6. Step 6: Final answer
    x = 539,653.50

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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.