Home / 1,288,961-1,933,852.38-540,806.12

Finding the Fourth Proportional to 1,288,961, 1,933,852.38 and 540,806.12

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Solution

The fourth proportional to 1,288,961, 1,933,852.38 and 540,806.12 is: 811,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,961 : 1,933,852.38 = 540,806.12 : x
  2. Step 2: Convert to fraction form
    1,288,961/1,933,852.38 = 540,806.12/x
  3. Step 3: Cross multiply
    1,288,961x = 1,933,852.38 × 540,806.12
  4. Step 4: Simplify right side
    1,288,961x = 1,045,839,202,280.57
  5. Step 5: Solve for x
    x = 1,045,839,202,280.57/1,288,961
  6. Step 6: Final answer
    x = 811,381.57

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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.