Home / 814,709.12-1,221,772.08-282,087.20

Finding the Fourth Proportional to 814,709.12, 1,221,772.08 and 282,087.20

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Solution

The fourth proportional to 814,709.12, 1,221,772.08 and 282,087.20 is: 423,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,709.12 : 1,221,772.08 = 282,087.20 : x
  2. Step 2: Convert to fraction form
    814,709.12/1,221,772.08 = 282,087.20/x
  3. Step 3: Cross multiply
    814,709.12x = 1,221,772.08 × 282,087.20
  4. Step 4: Simplify right side
    814,709.12x = 344,646,265,085.38
  5. Step 5: Solve for x
    x = 344,646,265,085.38/814,709.12
  6. Step 6: Final answer
    x = 423,029.84

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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.