Home / 782,936.57-1,080,528.30-438,830.96

Finding the Fourth Proportional to 782,936.57, 1,080,528.30 and 438,830.96

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Solution

The fourth proportional to 782,936.57, 1,080,528.30 and 438,830.96 is: 605,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,936.57 : 1,080,528.30 = 438,830.96 : x
  2. Step 2: Convert to fraction form
    782,936.57/1,080,528.30 = 438,830.96/x
  3. Step 3: Cross multiply
    782,936.57x = 1,080,528.30 × 438,830.96
  4. Step 4: Simplify right side
    782,936.57x = 474,169,265,793.53
  5. Step 5: Solve for x
    x = 474,169,265,793.53/782,936.57
  6. Step 6: Final answer
    x = 605,629.23

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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.