Home / 1,428,126.66-2,142,197.34-481,505.58

Finding the Fourth Proportional to 1,428,126.66, 2,142,197.34 and 481,505.58

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Solution

The fourth proportional to 1,428,126.66, 2,142,197.34 and 481,505.58 is: 722,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,126.66 : 2,142,197.34 = 481,505.58 : x
  2. Step 2: Convert to fraction form
    1,428,126.66/2,142,197.34 = 481,505.58/x
  3. Step 3: Cross multiply
    1,428,126.66x = 2,142,197.34 × 481,505.58
  4. Step 4: Simplify right side
    1,428,126.66x = 1,031,479,972,671.16
  5. Step 5: Solve for x
    x = 1,031,479,972,671.16/1,428,126.66
  6. Step 6: Final answer
    x = 722,260.85

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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.