Home / 806,419.80-1,209,629.70-682,003.80

Finding the Fourth Proportional to 806,419.80, 1,209,629.70 and 682,003.80

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Solution

The fourth proportional to 806,419.80, 1,209,629.70 and 682,003.80 is: 1,023,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,419.80 : 1,209,629.70 = 682,003.80 : x
  2. Step 2: Convert to fraction form
    806,419.80/1,209,629.70 = 682,003.80/x
  3. Step 3: Cross multiply
    806,419.80x = 1,209,629.70 × 682,003.80
  4. Step 4: Simplify right side
    806,419.80x = 824,972,051,992.86
  5. Step 5: Solve for x
    x = 824,972,051,992.86/806,419.80
  6. Step 6: Final answer
    x = 1,023,005.70

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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.