Home / 680,988.39-1,021,490.75-231,718.51

Finding the Fourth Proportional to 680,988.39, 1,021,490.75 and 231,718.51

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Solution

The fourth proportional to 680,988.39, 1,021,490.75 and 231,718.51 is: 347,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,988.39 : 1,021,490.75 = 231,718.51 : x
  2. Step 2: Convert to fraction form
    680,988.39/1,021,490.75 = 231,718.51/x
  3. Step 3: Cross multiply
    680,988.39x = 1,021,490.75 × 231,718.51
  4. Step 4: Simplify right side
    680,988.39x = 236,698,314,568.78
  5. Step 5: Solve for x
    x = 236,698,314,568.78/680,988.39
  6. Step 6: Final answer
    x = 347,580.54

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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.