Home / 814,921.98-1,222,633.23-389,001.30

Finding the Fourth Proportional to 814,921.98, 1,222,633.23 and 389,001.30

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Solution

The fourth proportional to 814,921.98, 1,222,633.23 and 389,001.30 is: 583,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,921.98 : 1,222,633.23 = 389,001.30 : x
  2. Step 2: Convert to fraction form
    814,921.98/1,222,633.23 = 389,001.30/x
  3. Step 3: Cross multiply
    814,921.98x = 1,222,633.23 × 389,001.30
  4. Step 4: Simplify right side
    814,921.98x = 475,605,915,893.20
  5. Step 5: Solve for x
    x = 475,605,915,893.20/814,921.98
  6. Step 6: Final answer
    x = 583,621.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.