Home / 817,768.96-1,226,653.10-218,714.56

Finding the Fourth Proportional to 817,768.96, 1,226,653.10 and 218,714.56

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Solution

The fourth proportional to 817,768.96, 1,226,653.10 and 218,714.56 is: 328,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,768.96 : 1,226,653.10 = 218,714.56 : x
  2. Step 2: Convert to fraction form
    817,768.96/1,226,653.10 = 218,714.56/x
  3. Step 3: Cross multiply
    817,768.96x = 1,226,653.10 × 218,714.56
  4. Step 4: Simplify right side
    817,768.96x = 268,286,893,039.14
  5. Step 5: Solve for x
    x = 268,286,893,039.14/817,768.96
  6. Step 6: Final answer
    x = 328,071.75

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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.