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Finding the Fourth Proportional to 636,858.75, 878,865.04 and 350,372.69

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Solution

The fourth proportional to 636,858.75, 878,865.04 and 350,372.69 is: 483,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,858.75 : 878,865.04 = 350,372.69 : x
  2. Step 2: Convert to fraction form
    636,858.75/878,865.04 = 350,372.69/x
  3. Step 3: Cross multiply
    636,858.75x = 878,865.04 × 350,372.69
  4. Step 4: Simplify right side
    636,858.75x = 307,930,308,211.76
  5. Step 5: Solve for x
    x = 307,930,308,211.76/636,858.75
  6. Step 6: Final answer
    x = 483,514.29

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1.5x scale

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.