Home / 859,515.32-1,288,276.44-809,692.72

Finding the Fourth Proportional to 859,515.32, 1,288,276.44 and 809,692.72

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Solution

The fourth proportional to 859,515.32, 1,288,276.44 and 809,692.72 is: 1,213,600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,515.32 : 1,288,276.44 = 809,692.72 : x
  2. Step 2: Convert to fraction form
    859,515.32/1,288,276.44 = 809,692.72/x
  3. Step 3: Cross multiply
    859,515.32x = 1,288,276.44 × 809,692.72
  4. Step 4: Simplify right side
    859,515.32x = 1,043,108,054,815.52
  5. Step 5: Solve for x
    x = 1,043,108,054,815.52/859,515.32
  6. Step 6: Final answer
    x = 1,213,600.31

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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.