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Finding the Fourth Proportional to 666,362.67, 999,527.40 and 311,773.44

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Solution

The fourth proportional to 666,362.67, 999,527.40 and 311,773.44 is: 467,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,362.67 : 999,527.40 = 311,773.44 : x
  2. Step 2: Convert to fraction form
    666,362.67/999,527.40 = 311,773.44/x
  3. Step 3: Cross multiply
    666,362.67x = 999,527.40 × 311,773.44
  4. Step 4: Simplify right side
    666,362.67x = 311,626,095,872.26
  5. Step 5: Solve for x
    x = 311,626,095,872.26/666,362.67
  6. Step 6: Final answer
    x = 467,652.39

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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.