Home / 680,890.18-1,021,335.28-207,571.44

Finding the Fourth Proportional to 680,890.18, 1,021,335.28 and 207,571.44

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Solution

The fourth proportional to 680,890.18, 1,021,335.28 and 207,571.44 is: 311,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,890.18 : 1,021,335.28 = 207,571.44 : x
  2. Step 2: Convert to fraction form
    680,890.18/1,021,335.28 = 207,571.44/x
  3. Step 3: Cross multiply
    680,890.18x = 1,021,335.28 × 207,571.44
  4. Step 4: Simplify right side
    680,890.18x = 212,000,034,792.40
  5. Step 5: Solve for x
    x = 212,000,034,792.40/680,890.18
  6. Step 6: Final answer
    x = 311,357.16

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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.