Home / 782,976.57-1,080,583.50-438,870.95

Finding the Fourth Proportional to 782,976.57, 1,080,583.50 and 438,870.95

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Solution

The fourth proportional to 782,976.57, 1,080,583.50 and 438,870.95 is: 605,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,976.57 : 1,080,583.50 = 438,870.95 : x
  2. Step 2: Convert to fraction form
    782,976.57/1,080,583.50 = 438,870.95/x
  3. Step 3: Cross multiply
    782,976.57x = 1,080,583.50 × 438,870.95
  4. Step 4: Simplify right side
    782,976.57x = 474,236,707,199.33
  5. Step 5: Solve for x
    x = 474,236,707,199.33/782,976.57
  6. Step 6: Final answer
    x = 605,684.42

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1.5x scale

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.