Home / 778,331.64-1,167,400.84-209,757.22

Finding the Fourth Proportional to 778,331.64, 1,167,400.84 and 209,757.22

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Solution

The fourth proportional to 778,331.64, 1,167,400.84 and 209,757.22 is: 314,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,331.64 : 1,167,400.84 = 209,757.22 : x
  2. Step 2: Convert to fraction form
    778,331.64/1,167,400.84 = 209,757.22/x
  3. Step 3: Cross multiply
    778,331.64x = 1,167,400.84 × 209,757.22
  4. Step 4: Simplify right side
    778,331.64x = 244,870,754,824.07
  5. Step 5: Solve for x
    x = 244,870,754,824.07/778,331.64
  6. Step 6: Final answer
    x = 314,609.79

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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.