Home / 826,280.39-1,239,278.13-219,073.01

Finding the Fourth Proportional to 826,280.39, 1,239,278.13 and 219,073.01

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Solution

The fourth proportional to 826,280.39, 1,239,278.13 and 219,073.01 is: 328,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,280.39 : 1,239,278.13 = 219,073.01 : x
  2. Step 2: Convert to fraction form
    826,280.39/1,239,278.13 = 219,073.01/x
  3. Step 3: Cross multiply
    826,280.39x = 1,239,278.13 × 219,073.01
  4. Step 4: Simplify right side
    826,280.39x = 271,492,383,969.88
  5. Step 5: Solve for x
    x = 271,492,383,969.88/826,280.39
  6. Step 6: Final answer
    x = 328,571.74

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1.5x scale

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.