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Finding the Fourth Proportional to 386,952.60, 580,866.30 and 298,597.80

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Solution

The fourth proportional to 386,952.60, 580,866.30 and 298,597.80 is: 448,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,952.60 : 580,866.30 = 298,597.80 : x
  2. Step 2: Convert to fraction form
    386,952.60/580,866.30 = 298,597.80/x
  3. Step 3: Cross multiply
    386,952.60x = 580,866.30 × 298,597.80
  4. Step 4: Simplify right side
    386,952.60x = 173,445,399,274.14
  5. Step 5: Solve for x
    x = 173,445,399,274.14/386,952.60
  6. Step 6: Final answer
    x = 448,234.23

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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.