Home / 819,790.16-1,230,103.32-552,991.56

Finding the Fourth Proportional to 819,790.16, 1,230,103.32 and 552,991.56

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Solution

The fourth proportional to 819,790.16, 1,230,103.32 and 552,991.56 is: 829,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,790.16 : 1,230,103.32 = 552,991.56 : x
  2. Step 2: Convert to fraction form
    819,790.16/1,230,103.32 = 552,991.56/x
  3. Step 3: Cross multiply
    819,790.16x = 1,230,103.32 × 552,991.56
  4. Step 4: Simplify right side
    819,790.16x = 680,236,753,887.98
  5. Step 5: Solve for x
    x = 680,236,753,887.98/819,790.16
  6. Step 6: Final answer
    x = 829,769.36

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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.