Home / 817,806.70-1,226,961.06-418,727.68

Finding the Fourth Proportional to 817,806.70, 1,226,961.06 and 418,727.68

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Solution

The fourth proportional to 817,806.70, 1,226,961.06 and 418,727.68 is: 628,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,806.70 : 1,226,961.06 = 418,727.68 : x
  2. Step 2: Convert to fraction form
    817,806.70/1,226,961.06 = 418,727.68/x
  3. Step 3: Cross multiply
    817,806.70x = 1,226,961.06 × 418,727.68
  4. Step 4: Simplify right side
    817,806.70x = 513,762,558,104.14
  5. Step 5: Solve for x
    x = 513,762,558,104.14/817,806.70
  6. Step 6: Final answer
    x = 628,220.04

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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.