Home / 777,418.05-1,166,465.91-272,341.34

Finding the Fourth Proportional to 777,418.05, 1,166,465.91 and 272,341.34

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Solution

The fourth proportional to 777,418.05, 1,166,465.91 and 272,341.34 is: 408,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,418.05 : 1,166,465.91 = 272,341.34 : x
  2. Step 2: Convert to fraction form
    777,418.05/1,166,465.91 = 272,341.34/x
  3. Step 3: Cross multiply
    777,418.05x = 1,166,465.91 × 272,341.34
  4. Step 4: Simplify right side
    777,418.05x = 317,676,888,556.92
  5. Step 5: Solve for x
    x = 317,676,888,556.92/777,418.05
  6. Step 6: Final answer
    x = 408,630.71

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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.