Home / 817,881.38-1,226,933.85-285,322.58

Finding the Fourth Proportional to 817,881.38, 1,226,933.85 and 285,322.58

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Solution

The fourth proportional to 817,881.38, 1,226,933.85 and 285,322.58 is: 428,022.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,881.38 : 1,226,933.85 = 285,322.58 : x
  2. Step 2: Convert to fraction form
    817,881.38/1,226,933.85 = 285,322.58/x
  3. Step 3: Cross multiply
    817,881.38x = 1,226,933.85 × 285,322.58
  4. Step 4: Simplify right side
    817,881.38x = 350,071,925,436.66
  5. Step 5: Solve for x
    x = 350,071,925,436.66/817,881.38
  6. Step 6: Final answer
    x = 428,022.86

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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.