Home / 777,110.85-1,165,731.86-216,145.35

Finding the Fourth Proportional to 777,110.85, 1,165,731.86 and 216,145.35

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Solution

The fourth proportional to 777,110.85, 1,165,731.86 and 216,145.35 is: 324,236.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,110.85 : 1,165,731.86 = 216,145.35 : x
  2. Step 2: Convert to fraction form
    777,110.85/1,165,731.86 = 216,145.35/x
  3. Step 3: Cross multiply
    777,110.85x = 1,165,731.86 × 216,145.35
  4. Step 4: Simplify right side
    777,110.85x = 251,967,519,805.12
  5. Step 5: Solve for x
    x = 251,967,519,805.12/777,110.85
  6. Step 6: Final answer
    x = 324,236.27

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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.