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Finding the Fourth Proportional to 404,548.53, 607,001.85 and 212,377.75

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Solution

The fourth proportional to 404,548.53, 607,001.85 and 212,377.75 is: 318,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,548.53 : 607,001.85 = 212,377.75 : x
  2. Step 2: Convert to fraction form
    404,548.53/607,001.85 = 212,377.75/x
  3. Step 3: Cross multiply
    404,548.53x = 607,001.85 × 212,377.75
  4. Step 4: Simplify right side
    404,548.53x = 128,913,685,631.33
  5. Step 5: Solve for x
    x = 128,913,685,631.33/404,548.53
  6. Step 6: Final answer
    x = 318,660.62

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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.