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Finding the Fourth Proportional to 580,595.06, 870,449.36 and 328,160.58

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Solution

The fourth proportional to 580,595.06, 870,449.36 and 328,160.58 is: 491,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,595.06 : 870,449.36 = 328,160.58 : x
  2. Step 2: Convert to fraction form
    580,595.06/870,449.36 = 328,160.58/x
  3. Step 3: Cross multiply
    580,595.06x = 870,449.36 × 328,160.58
  4. Step 4: Simplify right side
    580,595.06x = 285,647,165,197.43
  5. Step 5: Solve for x
    x = 285,647,165,197.43/580,595.06
  6. Step 6: Final answer
    x = 491,990.35

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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.