Home / 805,200.89-1,207,999.11-400,584.02

Finding the Fourth Proportional to 805,200.89, 1,207,999.11 and 400,584.02

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Solution

The fourth proportional to 805,200.89, 1,207,999.11 and 400,584.02 is: 600,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,200.89 : 1,207,999.11 = 400,584.02 : x
  2. Step 2: Convert to fraction form
    805,200.89/1,207,999.11 = 400,584.02/x
  3. Step 3: Cross multiply
    805,200.89x = 1,207,999.11 × 400,584.02
  4. Step 4: Simplify right side
    805,200.89x = 483,905,139,640.22
  5. Step 5: Solve for x
    x = 483,905,139,640.22/805,200.89
  6. Step 6: Final answer
    x = 600,974.42

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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.