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Finding the Fourth Proportional to 809,560.80, 1,211,230.80 and 529,624.80

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Solution

The fourth proportional to 809,560.80, 1,211,230.80 and 529,624.80 is: 792,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,560.80 : 1,211,230.80 = 529,624.80 : x
  2. Step 2: Convert to fraction form
    809,560.80/1,211,230.80 = 529,624.80/x
  3. Step 3: Cross multiply
    809,560.80x = 1,211,230.80 × 529,624.80
  4. Step 4: Simplify right side
    809,560.80x = 641,497,870,203.84
  5. Step 5: Solve for x
    x = 641,497,870,203.84/809,560.80
  6. Step 6: Final answer
    x = 792,402.34

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1.5x scale

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.