Home / 781,568.35-1,171,740.07-308,607.73

Finding the Fourth Proportional to 781,568.35, 1,171,740.07 and 308,607.73

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Solution

The fourth proportional to 781,568.35, 1,171,740.07 and 308,607.73 is: 462,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,568.35 : 1,171,740.07 = 308,607.73 : x
  2. Step 2: Convert to fraction form
    781,568.35/1,171,740.07 = 308,607.73/x
  3. Step 3: Cross multiply
    781,568.35x = 1,171,740.07 × 308,607.73
  4. Step 4: Simplify right side
    781,568.35x = 361,608,043,152.74
  5. Step 5: Solve for x
    x = 361,608,043,152.74/781,568.35
  6. Step 6: Final answer
    x = 462,669.76

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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.