Home / 680,992.47-1,021,485.96-207,676.46

Finding the Fourth Proportional to 680,992.47, 1,021,485.96 and 207,676.46

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Solution

The fourth proportional to 680,992.47, 1,021,485.96 and 207,676.46 is: 311,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,992.47 : 1,021,485.96 = 207,676.46 : x
  2. Step 2: Convert to fraction form
    680,992.47/1,021,485.96 = 207,676.46/x
  3. Step 3: Cross multiply
    680,992.47x = 1,021,485.96 × 207,676.46
  4. Step 4: Simplify right side
    680,992.47x = 212,138,583,005.07
  5. Step 5: Solve for x
    x = 212,138,583,005.07/680,992.47
  6. Step 6: Final answer
    x = 311,513.85

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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.