Home / 817,620.51-1,226,337.18-218,628.38

Finding the Fourth Proportional to 817,620.51, 1,226,337.18 and 218,628.38

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Solution

The fourth proportional to 817,620.51, 1,226,337.18 and 218,628.38 is: 327,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,620.51 : 1,226,337.18 = 218,628.38 : x
  2. Step 2: Convert to fraction form
    817,620.51/1,226,337.18 = 218,628.38/x
  3. Step 3: Cross multiply
    817,620.51x = 1,226,337.18 × 218,628.38
  4. Step 4: Simplify right side
    817,620.51x = 268,112,113,243.16
  5. Step 5: Solve for x
    x = 268,112,113,243.16/817,620.51
  6. Step 6: Final answer
    x = 327,917.55

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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.