Home / 809,296.80-1,117,276.92-487,086

Finding the Fourth Proportional to 809,296.80, 1,117,276.92 and 487,086

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Solution

The fourth proportional to 809,296.80, 1,117,276.92 and 487,086 is: 672,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,296.80 : 1,117,276.92 = 487,086 : x
  2. Step 2: Convert to fraction form
    809,296.80/1,117,276.92 = 487,086/x
  3. Step 3: Cross multiply
    809,296.80x = 1,117,276.92 × 487,086
  4. Step 4: Simplify right side
    809,296.80x = 544,209,945,855.12
  5. Step 5: Solve for x
    x = 544,209,945,855.12/809,296.80
  6. Step 6: Final answer
    x = 672,447.92

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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.