Home / 680,605.16-1,021,538.59-343,882.46

Finding the Fourth Proportional to 680,605.16, 1,021,538.59 and 343,882.46

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Solution

The fourth proportional to 680,605.16, 1,021,538.59 and 343,882.46 is: 516,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,605.16 : 1,021,538.59 = 343,882.46 : x
  2. Step 2: Convert to fraction form
    680,605.16/1,021,538.59 = 343,882.46/x
  3. Step 3: Cross multiply
    680,605.16x = 1,021,538.59 × 343,882.46
  4. Step 4: Simplify right side
    680,605.16x = 351,289,203,314.13
  5. Step 5: Solve for x
    x = 351,289,203,314.13/680,605.16
  6. Step 6: Final answer
    x = 516,142.43

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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.