Home / 680,600.56-1,021,530.98-343,878.20

Finding the Fourth Proportional to 680,600.56, 1,021,530.98 and 343,878.20

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Solution

The fourth proportional to 680,600.56, 1,021,530.98 and 343,878.20 is: 516,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,600.56 : 1,021,530.98 = 343,878.20 : x
  2. Step 2: Convert to fraction form
    680,600.56/1,021,530.98 = 343,878.20/x
  3. Step 3: Cross multiply
    680,600.56x = 1,021,530.98 × 343,878.20
  4. Step 4: Simplify right side
    680,600.56x = 351,282,234,646.64
  5. Step 5: Solve for x
    x = 351,282,234,646.64/680,600.56
  6. Step 6: Final answer
    x = 516,135.68

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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.