Home / 781,568.85-1,171,740.83-308,608.23

Finding the Fourth Proportional to 781,568.85, 1,171,740.83 and 308,608.23

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Solution

The fourth proportional to 781,568.85, 1,171,740.83 and 308,608.23 is: 462,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,568.85 : 1,171,740.83 = 308,608.23 : x
  2. Step 2: Convert to fraction form
    781,568.85/1,171,740.83 = 308,608.23/x
  3. Step 3: Cross multiply
    781,568.85x = 1,171,740.83 × 308,608.23
  4. Step 4: Simplify right side
    781,568.85x = 361,608,862,021.99
  5. Step 5: Solve for x
    x = 361,608,862,021.99/781,568.85
  6. Step 6: Final answer
    x = 462,670.51

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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.