Home / 1,397,201.40-1,928,059.20-824,426.10

Finding the Fourth Proportional to 1,397,201.40, 1,928,059.20 and 824,426.10

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Solution

The fourth proportional to 1,397,201.40, 1,928,059.20 and 824,426.10 is: 1,137,661.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,201.40 : 1,928,059.20 = 824,426.10 : x
  2. Step 2: Convert to fraction form
    1,397,201.40/1,928,059.20 = 824,426.10/x
  3. Step 3: Cross multiply
    1,397,201.40x = 1,928,059.20 × 824,426.10
  4. Step 4: Simplify right side
    1,397,201.40x = 1,589,542,326,825.12
  5. Step 5: Solve for x
    x = 1,589,542,326,825.12/1,397,201.40
  6. Step 6: Final answer
    x = 1,137,661.56

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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.