Home / 1,240,796.49-1,862,121.15-921,685.20

Finding the Fourth Proportional to 1,240,796.49, 1,862,121.15 and 921,685.20

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Solution

The fourth proportional to 1,240,796.49, 1,862,121.15 and 921,685.20 is: 1,383,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,796.49 : 1,862,121.15 = 921,685.20 : x
  2. Step 2: Convert to fraction form
    1,240,796.49/1,862,121.15 = 921,685.20/x
  3. Step 3: Cross multiply
    1,240,796.49x = 1,862,121.15 × 921,685.20
  4. Step 4: Simplify right side
    1,240,796.49x = 1,716,289,504,561.98
  5. Step 5: Solve for x
    x = 1,716,289,504,561.98/1,240,796.49
  6. Step 6: Final answer
    x = 1,383,215.96

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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.