Home / 680,889.18-1,021,333.78-207,570.44

Finding the Fourth Proportional to 680,889.18, 1,021,333.78 and 207,570.44

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Solution

The fourth proportional to 680,889.18, 1,021,333.78 and 207,570.44 is: 311,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,889.18 : 1,021,333.78 = 207,570.44 : x
  2. Step 2: Convert to fraction form
    680,889.18/1,021,333.78 = 207,570.44/x
  3. Step 3: Cross multiply
    680,889.18x = 1,021,333.78 × 207,570.44
  4. Step 4: Simplify right side
    680,889.18x = 211,998,702,101.46
  5. Step 5: Solve for x
    x = 211,998,702,101.46/680,889.18
  6. Step 6: Final answer
    x = 311,355.66

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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.