Home / 811,179.22-1,216,797.04-278,696.34

Finding the Fourth Proportional to 811,179.22, 1,216,797.04 and 278,696.34

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Solution

The fourth proportional to 811,179.22, 1,216,797.04 and 278,696.34 is: 418,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,179.22 : 1,216,797.04 = 278,696.34 : x
  2. Step 2: Convert to fraction form
    811,179.22/1,216,797.04 = 278,696.34/x
  3. Step 3: Cross multiply
    811,179.22x = 1,216,797.04 × 278,696.34
  4. Step 4: Simplify right side
    811,179.22x = 339,116,881,570.83
  5. Step 5: Solve for x
    x = 339,116,881,570.83/811,179.22
  6. Step 6: Final answer
    x = 418,054.20

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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.