Home / 819,620.44-1,131,156.84-497,305.24

Finding the Fourth Proportional to 819,620.44, 1,131,156.84 and 497,305.24

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Solution

The fourth proportional to 819,620.44, 1,131,156.84 and 497,305.24 is: 686,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,620.44 : 1,131,156.84 = 497,305.24 : x
  2. Step 2: Convert to fraction form
    819,620.44/1,131,156.84 = 497,305.24/x
  3. Step 3: Cross multiply
    819,620.44x = 1,131,156.84 × 497,305.24
  4. Step 4: Simplify right side
    819,620.44x = 562,530,223,793.84
  5. Step 5: Solve for x
    x = 562,530,223,793.84/819,620.44
  6. Step 6: Final answer
    x = 686,330.16

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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.