Home / 680,988.89-1,021,491.50-231,719.01

Finding the Fourth Proportional to 680,988.89, 1,021,491.50 and 231,719.01

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Solution

The fourth proportional to 680,988.89, 1,021,491.50 and 231,719.01 is: 347,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,988.89 : 1,021,491.50 = 231,719.01 : x
  2. Step 2: Convert to fraction form
    680,988.89/1,021,491.50 = 231,719.01/x
  3. Step 3: Cross multiply
    680,988.89x = 1,021,491.50 × 231,719.01
  4. Step 4: Simplify right side
    680,988.89x = 236,698,997,944.82
  5. Step 5: Solve for x
    x = 236,698,997,944.82/680,988.89
  6. Step 6: Final answer
    x = 347,581.29

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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.