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Finding the Fourth Proportional to 707,385.18, 976,203.99 and 385,104.54

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Solution

The fourth proportional to 707,385.18, 976,203.99 and 385,104.54 is: 531,451.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,385.18 : 976,203.99 = 385,104.54 : x
  2. Step 2: Convert to fraction form
    707,385.18/976,203.99 = 385,104.54/x
  3. Step 3: Cross multiply
    707,385.18x = 976,203.99 × 385,104.54
  4. Step 4: Simplify right side
    707,385.18x = 375,940,588,515.12
  5. Step 5: Solve for x
    x = 375,940,588,515.12/707,385.18
  6. Step 6: Final answer
    x = 531,451.04

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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.