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Finding the Fourth Proportional to 580,498.60, 800,986.98 and 325,860.52

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Solution

The fourth proportional to 580,498.60, 800,986.98 and 325,860.52 is: 449,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,498.60 : 800,986.98 = 325,860.52 : x
  2. Step 2: Convert to fraction form
    580,498.60/800,986.98 = 325,860.52/x
  3. Step 3: Cross multiply
    580,498.60x = 800,986.98 × 325,860.52
  4. Step 4: Simplify right side
    580,498.60x = 261,010,033,816.03
  5. Step 5: Solve for x
    x = 261,010,033,816.03/580,498.60
  6. Step 6: Final answer
    x = 449,630.77

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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.