Home / 511,917.39-767,548.02-212,604.57

Finding the Fourth Proportional to 511,917.39, 767,548.02 and 212,604.57

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Solution

The fourth proportional to 511,917.39, 767,548.02 and 212,604.57 is: 318,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,917.39 : 767,548.02 = 212,604.57 : x
  2. Step 2: Convert to fraction form
    511,917.39/767,548.02 = 212,604.57/x
  3. Step 3: Cross multiply
    511,917.39x = 767,548.02 × 212,604.57
  4. Step 4: Simplify right side
    511,917.39x = 163,184,216,746.45
  5. Step 5: Solve for x
    x = 163,184,216,746.45/511,917.39
  6. Step 6: Final answer
    x = 318,770.61

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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.