Home / 805,966.20-1,207,199.70-665,998.20

Finding the Fourth Proportional to 805,966.20, 1,207,199.70 and 665,998.20

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Solution

The fourth proportional to 805,966.20, 1,207,199.70 and 665,998.20 is: 997,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,966.20 : 1,207,199.70 = 665,998.20 : x
  2. Step 2: Convert to fraction form
    805,966.20/1,207,199.70 = 665,998.20/x
  3. Step 3: Cross multiply
    805,966.20x = 1,207,199.70 × 665,998.20
  4. Step 4: Simplify right side
    805,966.20x = 803,992,827,240.54
  5. Step 5: Solve for x
    x = 803,992,827,240.54/805,966.20
  6. Step 6: Final answer
    x = 997,551.54

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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.