Home / 641,020.89-961,176.32-262,207.63

Finding the Fourth Proportional to 641,020.89, 961,176.32 and 262,207.63

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Solution

The fourth proportional to 641,020.89, 961,176.32 and 262,207.63 is: 393,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,020.89 : 961,176.32 = 262,207.63 : x
  2. Step 2: Convert to fraction form
    641,020.89/961,176.32 = 262,207.63/x
  3. Step 3: Cross multiply
    641,020.89x = 961,176.32 × 262,207.63
  4. Step 4: Simplify right side
    641,020.89x = 252,027,767,227.95
  5. Step 5: Solve for x
    x = 252,027,767,227.95/641,020.89
  6. Step 6: Final answer
    x = 393,166.23

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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.