Home / 1,217,784.11-1,680,500.66-673,942.82

Finding the Fourth Proportional to 1,217,784.11, 1,680,500.66 and 673,942.82

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Solution

The fourth proportional to 1,217,784.11, 1,680,500.66 and 673,942.82 is: 930,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,784.11 : 1,680,500.66 = 673,942.82 : x
  2. Step 2: Convert to fraction form
    1,217,784.11/1,680,500.66 = 673,942.82/x
  3. Step 3: Cross multiply
    1,217,784.11x = 1,680,500.66 × 673,942.82
  4. Step 4: Simplify right side
    1,217,784.11x = 1,132,561,342,040.04
  5. Step 5: Solve for x
    x = 1,132,561,342,040.04/1,217,784.11
  6. Step 6: Final answer
    x = 930,018.17

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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.