Home / 1,217,520.10-1,680,179.52-673,678.81

Finding the Fourth Proportional to 1,217,520.10, 1,680,179.52 and 673,678.81

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Solution

The fourth proportional to 1,217,520.10, 1,680,179.52 and 673,678.81 is: 929,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,520.10 : 1,680,179.52 = 673,678.81 : x
  2. Step 2: Convert to fraction form
    1,217,520.10/1,680,179.52 = 673,678.81/x
  3. Step 3: Cross multiply
    1,217,520.10x = 1,680,179.52 × 673,678.81
  4. Step 4: Simplify right side
    1,217,520.10x = 1,131,901,339,619.97
  5. Step 5: Solve for x
    x = 1,131,901,339,619.97/1,217,520.10
  6. Step 6: Final answer
    x = 929,677.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.