Home / 1,978,235.28-2,729,966.22-1,072,817.28

Finding the Fourth Proportional to 1,978,235.28, 2,729,966.22 and 1,072,817.28

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Solution

The fourth proportional to 1,978,235.28, 2,729,966.22 and 1,072,817.28 is: 1,480,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,235.28 : 2,729,966.22 = 1,072,817.28 : x
  2. Step 2: Convert to fraction form
    1,978,235.28/2,729,966.22 = 1,072,817.28/x
  3. Step 3: Cross multiply
    1,978,235.28x = 2,729,966.22 × 1,072,817.28
  4. Step 4: Simplify right side
    1,978,235.28x = 2,928,754,934,632.28
  5. Step 5: Solve for x
    x = 2,928,754,934,632.28/1,978,235.28
  6. Step 6: Final answer
    x = 1,480,488.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.