Home / 680,456.16-1,019,517.84-480,418.56

Finding the Fourth Proportional to 680,456.16, 1,019,517.84 and 480,418.56

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Solution

The fourth proportional to 680,456.16, 1,019,517.84 and 480,418.56 is: 719,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,456.16 : 1,019,517.84 = 480,418.56 : x
  2. Step 2: Convert to fraction form
    680,456.16/1,019,517.84 = 480,418.56/x
  3. Step 3: Cross multiply
    680,456.16x = 1,019,517.84 × 480,418.56
  4. Step 4: Simplify right side
    680,456.16x = 489,795,292,587.11
  5. Step 5: Solve for x
    x = 489,795,292,587.11/680,456.16
  6. Step 6: Final answer
    x = 719,804.33

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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.