Home / 465,764.10-642,745.70-293,647.20

Finding the Fourth Proportional to 465,764.10, 642,745.70 and 293,647.20

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Solution

The fourth proportional to 465,764.10, 642,745.70 and 293,647.20 is: 405,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,764.10 : 642,745.70 = 293,647.20 : x
  2. Step 2: Convert to fraction form
    465,764.10/642,745.70 = 293,647.20/x
  3. Step 3: Cross multiply
    465,764.10x = 642,745.70 × 293,647.20
  4. Step 4: Simplify right side
    465,764.10x = 188,740,475,117.04
  5. Step 5: Solve for x
    x = 188,740,475,117.04/465,764.10
  6. Step 6: Final answer
    x = 405,227.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.