Home / 817,908.09-1,226,878.47-218,868.27

Finding the Fourth Proportional to 817,908.09, 1,226,878.47 and 218,868.27

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Solution

The fourth proportional to 817,908.09, 1,226,878.47 and 218,868.27 is: 328,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,908.09 : 1,226,878.47 = 218,868.27 : x
  2. Step 2: Convert to fraction form
    817,908.09/1,226,878.47 = 218,868.27/x
  3. Step 3: Cross multiply
    817,908.09x = 1,226,878.47 × 218,868.27
  4. Step 4: Simplify right side
    817,908.09x = 268,524,768,229.15
  5. Step 5: Solve for x
    x = 268,524,768,229.15/817,908.09
  6. Step 6: Final answer
    x = 328,306.78

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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.