Home / 817,873.88-1,226,922.59-285,315.08

Finding the Fourth Proportional to 817,873.88, 1,226,922.59 and 285,315.08

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Solution

The fourth proportional to 817,873.88, 1,226,922.59 and 285,315.08 is: 428,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,873.88 : 1,226,922.59 = 285,315.08 : x
  2. Step 2: Convert to fraction form
    817,873.88/1,226,922.59 = 285,315.08/x
  3. Step 3: Cross multiply
    817,873.88x = 1,226,922.59 × 285,315.08
  4. Step 4: Simplify right side
    817,873.88x = 350,059,511,498.33
  5. Step 5: Solve for x
    x = 350,059,511,498.33/817,873.88
  6. Step 6: Final answer
    x = 428,011.61

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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.