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Finding the Fourth Proportional to 634,615.66, 952,172.70 and 279,380.44

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Solution

The fourth proportional to 634,615.66, 952,172.70 and 279,380.44 is: 419,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,615.66 : 952,172.70 = 279,380.44 : x
  2. Step 2: Convert to fraction form
    634,615.66/952,172.70 = 279,380.44/x
  3. Step 3: Cross multiply
    634,615.66x = 952,172.70 × 279,380.44
  4. Step 4: Simplify right side
    634,615.66x = 266,018,427,881.99
  5. Step 5: Solve for x
    x = 266,018,427,881.99/634,615.66
  6. Step 6: Final answer
    x = 419,180.37

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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.