Home / 747,887.82-1,031,971.28-421,183.64

Finding the Fourth Proportional to 747,887.82, 1,031,971.28 and 421,183.64

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Solution

The fourth proportional to 747,887.82, 1,031,971.28 and 421,183.64 is: 581,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,887.82 : 1,031,971.28 = 421,183.64 : x
  2. Step 2: Convert to fraction form
    747,887.82/1,031,971.28 = 421,183.64/x
  3. Step 3: Cross multiply
    747,887.82x = 1,031,971.28 × 421,183.64
  4. Step 4: Simplify right side
    747,887.82x = 434,649,412,820.09
  5. Step 5: Solve for x
    x = 434,649,412,820.09/747,887.82
  6. Step 6: Final answer
    x = 581,169.26

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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.