Home / 1,978,072.52-2,729,740.04-1,072,655.24

Finding the Fourth Proportional to 1,978,072.52, 2,729,740.04 and 1,072,655.24

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Solution

The fourth proportional to 1,978,072.52, 2,729,740.04 and 1,072,655.24 is: 1,480,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,072.52 : 2,729,740.04 = 1,072,655.24 : x
  2. Step 2: Convert to fraction form
    1,978,072.52/2,729,740.04 = 1,072,655.24/x
  3. Step 3: Cross multiply
    1,978,072.52x = 2,729,740.04 × 1,072,655.24
  4. Step 4: Simplify right side
    1,978,072.52x = 2,928,069,957,743.81
  5. Step 5: Solve for x
    x = 2,928,069,957,743.81/1,978,072.52
  6. Step 6: Final answer
    x = 1,480,264.21

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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.