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Finding the Fourth Proportional to 689,001.62, 950,853.87 and 383,109.41

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Solution

The fourth proportional to 689,001.62, 950,853.87 and 383,109.41 is: 528,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,001.62 : 950,853.87 = 383,109.41 : x
  2. Step 2: Convert to fraction form
    689,001.62/950,853.87 = 383,109.41/x
  3. Step 3: Cross multiply
    689,001.62x = 950,853.87 × 383,109.41
  4. Step 4: Simplify right side
    689,001.62x = 364,281,060,377.65
  5. Step 5: Solve for x
    x = 364,281,060,377.65/689,001.62
  6. Step 6: Final answer
    x = 528,708.57

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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.