Home / 909,891.22-1,364,787.54-278,806.87

Finding the Fourth Proportional to 909,891.22, 1,364,787.54 and 278,806.87

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Solution

The fourth proportional to 909,891.22, 1,364,787.54 and 278,806.87 is: 418,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,891.22 : 1,364,787.54 = 278,806.87 : x
  2. Step 2: Convert to fraction form
    909,891.22/1,364,787.54 = 278,806.87/x
  3. Step 3: Cross multiply
    909,891.22x = 1,364,787.54 × 278,806.87
  4. Step 4: Simplify right side
    909,891.22x = 380,512,142,242.40
  5. Step 5: Solve for x
    x = 380,512,142,242.40/909,891.22
  6. Step 6: Final answer
    x = 418,195.20

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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.