Home / 672,820.35-1,009,249.05-217,431.06

Finding the Fourth Proportional to 672,820.35, 1,009,249.05 and 217,431.06

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Solution

The fourth proportional to 672,820.35, 1,009,249.05 and 217,431.06 is: 326,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,820.35 : 1,009,249.05 = 217,431.06 : x
  2. Step 2: Convert to fraction form
    672,820.35/1,009,249.05 = 217,431.06/x
  3. Step 3: Cross multiply
    672,820.35x = 1,009,249.05 × 217,431.06
  4. Step 4: Simplify right side
    672,820.35x = 219,442,090,745.49
  5. Step 5: Solve for x
    x = 219,442,090,745.49/672,820.35
  6. Step 6: Final answer
    x = 326,152.58

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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.