Home / 817,878.44-1,226,723.79-218,886.33

Finding the Fourth Proportional to 817,878.44, 1,226,723.79 and 218,886.33

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Solution

The fourth proportional to 817,878.44, 1,226,723.79 and 218,886.33 is: 328,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,878.44 : 1,226,723.79 = 218,886.33 : x
  2. Step 2: Convert to fraction form
    817,878.44/1,226,723.79 = 218,886.33/x
  3. Step 3: Cross multiply
    817,878.44x = 1,226,723.79 × 218,886.33
  4. Step 4: Simplify right side
    817,878.44x = 268,513,068,316.79
  5. Step 5: Solve for x
    x = 268,513,068,316.79/817,878.44
  6. Step 6: Final answer
    x = 328,304.37

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Double scale
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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.