Home / 1,049,380.80-1,574,071.20-839,428.80

Finding the Fourth Proportional to 1,049,380.80, 1,574,071.20 and 839,428.80

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Solution

The fourth proportional to 1,049,380.80, 1,574,071.20 and 839,428.80 is: 1,259,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,380.80 : 1,574,071.20 = 839,428.80 : x
  2. Step 2: Convert to fraction form
    1,049,380.80/1,574,071.20 = 839,428.80/x
  3. Step 3: Cross multiply
    1,049,380.80x = 1,574,071.20 × 839,428.80
  4. Step 4: Simplify right side
    1,049,380.80x = 1,321,320,698,530.56
  5. Step 5: Solve for x
    x = 1,321,320,698,530.56/1,049,380.80
  6. Step 6: Final answer
    x = 1,259,143.20

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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.