Home / 857,981.03-1,286,979.03-218,285.33

Finding the Fourth Proportional to 857,981.03, 1,286,979.03 and 218,285.33

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Solution

The fourth proportional to 857,981.03, 1,286,979.03 and 218,285.33 is: 327,429.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,981.03 : 1,286,979.03 = 218,285.33 : x
  2. Step 2: Convert to fraction form
    857,981.03/1,286,979.03 = 218,285.33/x
  3. Step 3: Cross multiply
    857,981.03x = 1,286,979.03 × 218,285.33
  4. Step 4: Simplify right side
    857,981.03x = 280,928,635,831.74
  5. Step 5: Solve for x
    x = 280,928,635,831.74/857,981.03
  6. Step 6: Final answer
    x = 327,429.89

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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.