Home / 445,202.50-666,207.43-385,436.53

Finding the Fourth Proportional to 445,202.50, 666,207.43 and 385,436.53

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Solution

The fourth proportional to 445,202.50, 666,207.43 and 385,436.53 is: 576,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,202.50 : 666,207.43 = 385,436.53 : x
  2. Step 2: Convert to fraction form
    445,202.50/666,207.43 = 385,436.53/x
  3. Step 3: Cross multiply
    445,202.50x = 666,207.43 × 385,436.53
  4. Step 4: Simplify right side
    445,202.50x = 256,780,683,990.38
  5. Step 5: Solve for x
    x = 256,780,683,990.38/445,202.50
  6. Step 6: Final answer
    x = 576,772.78

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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.