Home / 680,991.51-1,021,495.47-231,721.59

Finding the Fourth Proportional to 680,991.51, 1,021,495.47 and 231,721.59

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Solution

The fourth proportional to 680,991.51, 1,021,495.47 and 231,721.59 is: 347,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,991.51 : 1,021,495.47 = 231,721.59 : x
  2. Step 2: Convert to fraction form
    680,991.51/1,021,495.47 = 231,721.59/x
  3. Step 3: Cross multiply
    680,991.51x = 1,021,495.47 × 231,721.59
  4. Step 4: Simplify right side
    680,991.51x = 236,702,554,486.20
  5. Step 5: Solve for x
    x = 236,702,554,486.20/680,991.51
  6. Step 6: Final answer
    x = 347,585.18

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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.