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Finding the Fourth Proportional to 663,456.80, 995,314.80 and 264,029.60

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Solution

The fourth proportional to 663,456.80, 995,314.80 and 264,029.60 is: 396,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,456.80 : 995,314.80 = 264,029.60 : x
  2. Step 2: Convert to fraction form
    663,456.80/995,314.80 = 264,029.60/x
  3. Step 3: Cross multiply
    663,456.80x = 995,314.80 × 264,029.60
  4. Step 4: Simplify right side
    663,456.80x = 262,792,568,518.08
  5. Step 5: Solve for x
    x = 262,792,568,518.08/663,456.80
  6. Step 6: Final answer
    x = 396,095.98

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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.