Home / 859,513.34-1,288,273.46-809,690.74

Finding the Fourth Proportional to 859,513.34, 1,288,273.46 and 809,690.74

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Solution

The fourth proportional to 859,513.34, 1,288,273.46 and 809,690.74 is: 1,213,597.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,513.34 : 1,288,273.46 = 809,690.74 : x
  2. Step 2: Convert to fraction form
    859,513.34/1,288,273.46 = 809,690.74/x
  3. Step 3: Cross multiply
    859,513.34x = 1,288,273.46 × 809,690.74
  4. Step 4: Simplify right side
    859,513.34x = 1,043,103,091,149.76
  5. Step 5: Solve for x
    x = 1,043,103,091,149.76/859,513.34
  6. Step 6: Final answer
    x = 1,213,597.33

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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.