Home / 805,199.89-1,207,997.61-400,583.02

Finding the Fourth Proportional to 805,199.89, 1,207,997.61 and 400,583.02

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Solution

The fourth proportional to 805,199.89, 1,207,997.61 and 400,583.02 is: 600,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,199.89 : 1,207,997.61 = 400,583.02 : x
  2. Step 2: Convert to fraction form
    805,199.89/1,207,997.61 = 400,583.02/x
  3. Step 3: Cross multiply
    805,199.89x = 1,207,997.61 × 400,583.02
  4. Step 4: Simplify right side
    805,199.89x = 483,903,330,766.58
  5. Step 5: Solve for x
    x = 483,903,330,766.58/805,199.89
  6. Step 6: Final answer
    x = 600,972.92

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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.