Home / 818,054.71-1,227,138.12-278,091.26

Finding the Fourth Proportional to 818,054.71, 1,227,138.12 and 278,091.26

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Solution

The fourth proportional to 818,054.71, 1,227,138.12 and 278,091.26 is: 417,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,054.71 : 1,227,138.12 = 278,091.26 : x
  2. Step 2: Convert to fraction form
    818,054.71/1,227,138.12 = 278,091.26/x
  3. Step 3: Cross multiply
    818,054.71x = 1,227,138.12 × 278,091.26
  4. Step 4: Simplify right side
    818,054.71x = 341,256,384,594.38
  5. Step 5: Solve for x
    x = 341,256,384,594.38/818,054.71
  6. Step 6: Final answer
    x = 417,155.95

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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.