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Finding the Fourth Proportional to 611,773.50, 916,717.10 and 327,501.77

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Solution

The fourth proportional to 611,773.50, 916,717.10 and 327,501.77 is: 490,747.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,773.50 : 916,717.10 = 327,501.77 : x
  2. Step 2: Convert to fraction form
    611,773.50/916,717.10 = 327,501.77/x
  3. Step 3: Cross multiply
    611,773.50x = 916,717.10 × 327,501.77
  4. Step 4: Simplify right side
    611,773.50x = 300,226,472,839.27
  5. Step 5: Solve for x
    x = 300,226,472,839.27/611,773.50
  6. Step 6: Final answer
    x = 490,747.76

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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.