Home / 806,991.24-1,211,405.40-408,082.44

Finding the Fourth Proportional to 806,991.24, 1,211,405.40 and 408,082.44

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Solution

The fourth proportional to 806,991.24, 1,211,405.40 and 408,082.44 is: 612,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,991.24 : 1,211,405.40 = 408,082.44 : x
  2. Step 2: Convert to fraction form
    806,991.24/1,211,405.40 = 408,082.44/x
  3. Step 3: Cross multiply
    806,991.24x = 1,211,405.40 × 408,082.44
  4. Step 4: Simplify right side
    806,991.24x = 494,353,271,461.18
  5. Step 5: Solve for x
    x = 494,353,271,461.18/806,991.24
  6. Step 6: Final answer
    x = 612,588.15

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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.