Home / 806,333.20-1,209,211.63-266,489.57

Finding the Fourth Proportional to 806,333.20, 1,209,211.63 and 266,489.57

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Solution

The fourth proportional to 806,333.20, 1,209,211.63 and 266,489.57 is: 399,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,333.20 : 1,209,211.63 = 266,489.57 : x
  2. Step 2: Convert to fraction form
    806,333.20/1,209,211.63 = 266,489.57/x
  3. Step 3: Cross multiply
    806,333.20x = 1,209,211.63 × 266,489.57
  4. Step 4: Simplify right side
    806,333.20x = 322,242,289,674.50
  5. Step 5: Solve for x
    x = 322,242,289,674.50/806,333.20
  6. Step 6: Final answer
    x = 399,639.12

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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.