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Finding the Fourth Proportional to 666,850.62, 920,195.46 and 376,446.18

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Solution

The fourth proportional to 666,850.62, 920,195.46 and 376,446.18 is: 519,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,850.62 : 920,195.46 = 376,446.18 : x
  2. Step 2: Convert to fraction form
    666,850.62/920,195.46 = 376,446.18/x
  3. Step 3: Cross multiply
    666,850.62x = 920,195.46 × 376,446.18
  4. Step 4: Simplify right side
    666,850.62x = 346,404,065,770.34
  5. Step 5: Solve for x
    x = 346,404,065,770.34/666,850.62
  6. Step 6: Final answer
    x = 519,462.76

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1.5x scale

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.