Home / 680,217.48-1,020,720.51-343,284.48

Finding the Fourth Proportional to 680,217.48, 1,020,720.51 and 343,284.48

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Solution

The fourth proportional to 680,217.48, 1,020,720.51 and 343,284.48 is: 515,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,217.48 : 1,020,720.51 = 343,284.48 : x
  2. Step 2: Convert to fraction form
    680,217.48/1,020,720.51 = 343,284.48/x
  3. Step 3: Cross multiply
    680,217.48x = 1,020,720.51 × 343,284.48
  4. Step 4: Simplify right side
    680,217.48x = 350,397,509,500.69
  5. Step 5: Solve for x
    x = 350,397,509,500.69/680,217.48
  6. Step 6: Final answer
    x = 515,125.71

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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.