Home / 651,609.82-977,388.07-272,433.22

Finding the Fourth Proportional to 651,609.82, 977,388.07 and 272,433.22

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Solution

The fourth proportional to 651,609.82, 977,388.07 and 272,433.22 is: 408,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,609.82 : 977,388.07 = 272,433.22 : x
  2. Step 2: Convert to fraction form
    651,609.82/977,388.07 = 272,433.22/x
  3. Step 3: Cross multiply
    651,609.82x = 977,388.07 × 272,433.22
  4. Step 4: Simplify right side
    651,609.82x = 266,272,981,983.75
  5. Step 5: Solve for x
    x = 266,272,981,983.75/651,609.82
  6. Step 6: Final answer
    x = 408,638.69

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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.