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Finding the Fourth Proportional to 515,609.50, 773,383.17 and 306,577.66

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Solution

The fourth proportional to 515,609.50, 773,383.17 and 306,577.66 is: 459,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,609.50 : 773,383.17 = 306,577.66 : x
  2. Step 2: Convert to fraction form
    515,609.50/773,383.17 = 306,577.66/x
  3. Step 3: Cross multiply
    515,609.50x = 773,383.17 × 306,577.66
  4. Step 4: Simplify right side
    515,609.50x = 237,102,002,541.98
  5. Step 5: Solve for x
    x = 237,102,002,541.98/515,609.50
  6. Step 6: Final answer
    x = 459,848.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.