Home / 680,769.74-1,021,154.70-207,455.42

Finding the Fourth Proportional to 680,769.74, 1,021,154.70 and 207,455.42

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Solution

The fourth proportional to 680,769.74, 1,021,154.70 and 207,455.42 is: 311,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,769.74 : 1,021,154.70 = 207,455.42 : x
  2. Step 2: Convert to fraction form
    680,769.74/1,021,154.70 = 207,455.42/x
  3. Step 3: Cross multiply
    680,769.74x = 1,021,154.70 × 207,455.42
  4. Step 4: Simplify right side
    680,769.74x = 211,844,077,173.47
  5. Step 5: Solve for x
    x = 211,844,077,173.47/680,769.74
  6. Step 6: Final answer
    x = 311,183.16

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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.