Home / 1,434,489.72-1,979,531.76-822,203.43

Finding the Fourth Proportional to 1,434,489.72, 1,979,531.76 and 822,203.43

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Solution

The fourth proportional to 1,434,489.72, 1,979,531.76 and 822,203.43 is: 1,134,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,489.72 : 1,979,531.76 = 822,203.43 : x
  2. Step 2: Convert to fraction form
    1,434,489.72/1,979,531.76 = 822,203.43/x
  3. Step 3: Cross multiply
    1,434,489.72x = 1,979,531.76 × 822,203.43
  4. Step 4: Simplify right side
    1,434,489.72x = 1,627,577,802,865.94
  5. Step 5: Solve for x
    x = 1,627,577,802,865.94/1,434,489.72
  6. Step 6: Final answer
    x = 1,134,604.02

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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.