Home / 681,272.10-1,021,908.15-207,956.70

Finding the Fourth Proportional to 681,272.10, 1,021,908.15 and 207,956.70

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Solution

The fourth proportional to 681,272.10, 1,021,908.15 and 207,956.70 is: 311,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,272.10 : 1,021,908.15 = 207,956.70 : x
  2. Step 2: Convert to fraction form
    681,272.10/1,021,908.15 = 207,956.70/x
  3. Step 3: Cross multiply
    681,272.10x = 1,021,908.15 × 207,956.70
  4. Step 4: Simplify right side
    681,272.10x = 212,512,646,577.11
  5. Step 5: Solve for x
    x = 212,512,646,577.11/681,272.10
  6. Step 6: Final answer
    x = 311,935.05

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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.