Home / 680,602.45-1,021,534.54-343,879.76

Finding the Fourth Proportional to 680,602.45, 1,021,534.54 and 343,879.76

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Solution

The fourth proportional to 680,602.45, 1,021,534.54 and 343,879.76 is: 516,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,602.45 : 1,021,534.54 = 343,879.76 : x
  2. Step 2: Convert to fraction form
    680,602.45/1,021,534.54 = 343,879.76/x
  3. Step 3: Cross multiply
    680,602.45x = 1,021,534.54 × 343,879.76
  4. Step 4: Simplify right side
    680,602.45x = 351,285,052,446.91
  5. Step 5: Solve for x
    x = 351,285,052,446.91/680,602.45
  6. Step 6: Final answer
    x = 516,138.39

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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.