Home / 724,432.56-1,086,205.59-345,469.20

Finding the Fourth Proportional to 724,432.56, 1,086,205.59 and 345,469.20

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Solution

The fourth proportional to 724,432.56, 1,086,205.59 and 345,469.20 is: 517,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,432.56 : 1,086,205.59 = 345,469.20 : x
  2. Step 2: Convert to fraction form
    724,432.56/1,086,205.59 = 345,469.20/x
  3. Step 3: Cross multiply
    724,432.56x = 1,086,205.59 × 345,469.20
  4. Step 4: Simplify right side
    724,432.56x = 375,250,576,212.83
  5. Step 5: Solve for x
    x = 375,250,576,212.83/724,432.56
  6. Step 6: Final answer
    x = 517,992.42

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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.