Home / 819,824.24-1,229,701.46-280,129.01

Finding the Fourth Proportional to 819,824.24, 1,229,701.46 and 280,129.01

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Solution

The fourth proportional to 819,824.24, 1,229,701.46 and 280,129.01 is: 420,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,824.24 : 1,229,701.46 = 280,129.01 : x
  2. Step 2: Convert to fraction form
    819,824.24/1,229,701.46 = 280,129.01/x
  3. Step 3: Cross multiply
    819,824.24x = 1,229,701.46 × 280,129.01
  4. Step 4: Simplify right side
    819,824.24x = 344,475,045,036.20
  5. Step 5: Solve for x
    x = 344,475,045,036.20/819,824.24
  6. Step 6: Final answer
    x = 420,181.58

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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.