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Finding the Fourth Proportional to 658,940.44, 988,534.30 and 299,136.52

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Solution

The fourth proportional to 658,940.44, 988,534.30 and 299,136.52 is: 448,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,940.44 : 988,534.30 = 299,136.52 : x
  2. Step 2: Convert to fraction form
    658,940.44/988,534.30 = 299,136.52/x
  3. Step 3: Cross multiply
    658,940.44x = 988,534.30 × 299,136.52
  4. Step 4: Simplify right side
    658,940.44x = 295,706,710,402.64
  5. Step 5: Solve for x
    x = 295,706,710,402.64/658,940.44
  6. Step 6: Final answer
    x = 448,760.91

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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.