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Finding the Fourth Proportional to 550,553.62, 759,762.75 and 305,575.90

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Solution

The fourth proportional to 550,553.62, 759,762.75 and 305,575.90 is: 421,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,553.62 : 759,762.75 = 305,575.90 : x
  2. Step 2: Convert to fraction form
    550,553.62/759,762.75 = 305,575.90/x
  3. Step 3: Cross multiply
    550,553.62x = 759,762.75 × 305,575.90
  4. Step 4: Simplify right side
    550,553.62x = 232,165,186,117.73
  5. Step 5: Solve for x
    x = 232,165,186,117.73/550,553.62
  6. Step 6: Final answer
    x = 421,694.05

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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.