Home / 680,712.01-1,021,220.30-207,434.41

Finding the Fourth Proportional to 680,712.01, 1,021,220.30 and 207,434.41

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Solution

The fourth proportional to 680,712.01, 1,021,220.30 and 207,434.41 is: 311,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,712.01 : 1,021,220.30 = 207,434.41 : x
  2. Step 2: Convert to fraction form
    680,712.01/1,021,220.30 = 207,434.41/x
  3. Step 3: Cross multiply
    680,712.01x = 1,021,220.30 × 207,434.41
  4. Step 4: Simplify right side
    680,712.01x = 211,836,229,373.35
  5. Step 5: Solve for x
    x = 211,836,229,373.35/680,712.01
  6. Step 6: Final answer
    x = 311,198.02

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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.