Home / 813,704.92-1,220,390.54-308,091.46

Finding the Fourth Proportional to 813,704.92, 1,220,390.54 and 308,091.46

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Solution

The fourth proportional to 813,704.92, 1,220,390.54 and 308,091.46 is: 462,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,704.92 : 1,220,390.54 = 308,091.46 : x
  2. Step 2: Convert to fraction form
    813,704.92/1,220,390.54 = 308,091.46/x
  3. Step 3: Cross multiply
    813,704.92x = 1,220,390.54 × 308,091.46
  4. Step 4: Simplify right side
    813,704.92x = 375,991,903,238.79
  5. Step 5: Solve for x
    x = 375,991,903,238.79/813,704.92
  6. Step 6: Final answer
    x = 462,074.02

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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.