Home / 482,785.05-666,089.25-278,809.04

Finding the Fourth Proportional to 482,785.05, 666,089.25 and 278,809.04

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Solution

The fourth proportional to 482,785.05, 666,089.25 and 278,809.04 is: 384,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,785.05 : 666,089.25 = 278,809.04 : x
  2. Step 2: Convert to fraction form
    482,785.05/666,089.25 = 278,809.04/x
  3. Step 3: Cross multiply
    482,785.05x = 666,089.25 × 278,809.04
  4. Step 4: Simplify right side
    482,785.05x = 185,711,701,016.37
  5. Step 5: Solve for x
    x = 185,711,701,016.37/482,785.05
  6. Step 6: Final answer
    x = 384,667.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.