Home / 1,978,064.25-2,729,728.67-1,072,646.97

Finding the Fourth Proportional to 1,978,064.25, 2,729,728.67 and 1,072,646.97

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Solution

The fourth proportional to 1,978,064.25, 2,729,728.67 and 1,072,646.97 is: 1,480,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,064.25 : 2,729,728.67 = 1,072,646.97 : x
  2. Step 2: Convert to fraction form
    1,978,064.25/2,729,728.67 = 1,072,646.97/x
  3. Step 3: Cross multiply
    1,978,064.25x = 2,729,728.67 × 1,072,646.97
  4. Step 4: Simplify right side
    1,978,064.25x = 2,928,035,181,434.40
  5. Step 5: Solve for x
    x = 2,928,035,181,434.40/1,978,064.25
  6. Step 6: Final answer
    x = 1,480,252.82

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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.