Home / 809,097.80-1,211,313.90-809,097.80

Finding the Fourth Proportional to 809,097.80, 1,211,313.90 and 809,097.80

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Solution

The fourth proportional to 809,097.80, 1,211,313.90 and 809,097.80 is: 1,211,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,097.80 : 1,211,313.90 = 809,097.80 : x
  2. Step 2: Convert to fraction form
    809,097.80/1,211,313.90 = 809,097.80/x
  3. Step 3: Cross multiply
    809,097.80x = 1,211,313.90 × 809,097.80
  4. Step 4: Simplify right side
    809,097.80x = 980,071,411,599.42
  5. Step 5: Solve for x
    x = 980,071,411,599.42/809,097.80
  6. Step 6: Final answer
    x = 1,211,313.90

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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.