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Finding the Fourth Proportional to 389,196.80, 582,657.84 and 351,842.88

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Solution

The fourth proportional to 389,196.80, 582,657.84 and 351,842.88 is: 526,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,196.80 : 582,657.84 = 351,842.88 : x
  2. Step 2: Convert to fraction form
    389,196.80/582,657.84 = 351,842.88/x
  3. Step 3: Cross multiply
    389,196.80x = 582,657.84 × 351,842.88
  4. Step 4: Simplify right side
    389,196.80x = 205,004,012,480.18
  5. Step 5: Solve for x
    x = 205,004,012,480.18/389,196.80
  6. Step 6: Final answer
    x = 526,736.12

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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.