Home / 1,215,192.80-1,820,164.80-1,057,728.80

Finding the Fourth Proportional to 1,215,192.80, 1,820,164.80 and 1,057,728.80

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Solution

The fourth proportional to 1,215,192.80, 1,820,164.80 and 1,057,728.80 is: 1,584,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,192.80 : 1,820,164.80 = 1,057,728.80 : x
  2. Step 2: Convert to fraction form
    1,215,192.80/1,820,164.80 = 1,057,728.80/x
  3. Step 3: Cross multiply
    1,215,192.80x = 1,820,164.80 × 1,057,728.80
  4. Step 4: Simplify right side
    1,215,192.80x = 1,925,240,729,706.24
  5. Step 5: Solve for x
    x = 1,925,240,729,706.24/1,215,192.80
  6. Step 6: Final answer
    x = 1,584,308.87

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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.