Home / 680,962.72-1,021,609.52-207,656.48

Finding the Fourth Proportional to 680,962.72, 1,021,609.52 and 207,656.48

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Solution

The fourth proportional to 680,962.72, 1,021,609.52 and 207,656.48 is: 311,535.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,962.72 : 1,021,609.52 = 207,656.48 : x
  2. Step 2: Convert to fraction form
    680,962.72/1,021,609.52 = 207,656.48/x
  3. Step 3: Cross multiply
    680,962.72x = 1,021,609.52 × 207,656.48
  4. Step 4: Simplify right side
    680,962.72x = 212,143,836,857.69
  5. Step 5: Solve for x
    x = 212,143,836,857.69/680,962.72
  6. Step 6: Final answer
    x = 311,535.17

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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.