Home / 776,749.50-1,165,138.83-215,798.58

Finding the Fourth Proportional to 776,749.50, 1,165,138.83 and 215,798.58

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Solution

The fourth proportional to 776,749.50, 1,165,138.83 and 215,798.58 is: 323,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,749.50 : 1,165,138.83 = 215,798.58 : x
  2. Step 2: Convert to fraction form
    776,749.50/1,165,138.83 = 215,798.58/x
  3. Step 3: Cross multiply
    776,749.50x = 1,165,138.83 × 215,798.58
  4. Step 4: Simplify right side
    776,749.50x = 251,435,305,016.86
  5. Step 5: Solve for x
    x = 251,435,305,016.86/776,749.50
  6. Step 6: Final answer
    x = 323,701.92

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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.