Home / 1,217,805.66-1,680,575.04-673,978.86

Finding the Fourth Proportional to 1,217,805.66, 1,680,575.04 and 673,978.86

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Solution

The fourth proportional to 1,217,805.66, 1,680,575.04 and 673,978.86 is: 930,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,805.66 : 1,680,575.04 = 673,978.86 : x
  2. Step 2: Convert to fraction form
    1,217,805.66/1,680,575.04 = 673,978.86/x
  3. Step 3: Cross multiply
    1,217,805.66x = 1,680,575.04 × 673,978.86
  4. Step 4: Simplify right side
    1,217,805.66x = 1,132,672,049,603.65
  5. Step 5: Solve for x
    x = 1,132,672,049,603.65/1,217,805.66
  6. Step 6: Final answer
    x = 930,092.61

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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.