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Finding the Fourth Proportional to 404,912.49, 607,737.08 and 215,532.06

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Solution

The fourth proportional to 404,912.49, 607,737.08 and 215,532.06 is: 323,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,912.49 : 607,737.08 = 215,532.06 : x
  2. Step 2: Convert to fraction form
    404,912.49/607,737.08 = 215,532.06/x
  3. Step 3: Cross multiply
    404,912.49x = 607,737.08 × 215,532.06
  4. Step 4: Simplify right side
    404,912.49x = 130,986,824,790.79
  5. Step 5: Solve for x
    x = 130,986,824,790.79/404,912.49
  6. Step 6: Final answer
    x = 323,494.16

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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.