Home / 680,147.20-1,019,929.20-343,057.60

Finding the Fourth Proportional to 680,147.20, 1,019,929.20 and 343,057.60

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Solution

The fourth proportional to 680,147.20, 1,019,929.20 and 343,057.60 is: 514,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,147.20 : 1,019,929.20 = 343,057.60 : x
  2. Step 2: Convert to fraction form
    680,147.20/1,019,929.20 = 343,057.60/x
  3. Step 3: Cross multiply
    680,147.20x = 1,019,929.20 × 343,057.60
  4. Step 4: Simplify right side
    680,147.20x = 349,894,463,521.92
  5. Step 5: Solve for x
    x = 349,894,463,521.92/680,147.20
  6. Step 6: Final answer
    x = 514,439.32

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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.