Home / 727,873.54-1,091,288.14-278,215.41

Finding the Fourth Proportional to 727,873.54, 1,091,288.14 and 278,215.41

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Solution

The fourth proportional to 727,873.54, 1,091,288.14 and 278,215.41 is: 417,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,873.54 : 1,091,288.14 = 278,215.41 : x
  2. Step 2: Convert to fraction form
    727,873.54/1,091,288.14 = 278,215.41/x
  3. Step 3: Cross multiply
    727,873.54x = 1,091,288.14 × 278,215.41
  4. Step 4: Simplify right side
    727,873.54x = 303,613,176,121.50
  5. Step 5: Solve for x
    x = 303,613,176,121.50/727,873.54
  6. Step 6: Final answer
    x = 417,123.52

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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.