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Finding the Fourth Proportional to 507,361.27, 700,629.21 and 379,815.43

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Solution

The fourth proportional to 507,361.27, 700,629.21 and 379,815.43 is: 524,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,361.27 : 700,629.21 = 379,815.43 : x
  2. Step 2: Convert to fraction form
    507,361.27/700,629.21 = 379,815.43/x
  3. Step 3: Cross multiply
    507,361.27x = 700,629.21 × 379,815.43
  4. Step 4: Simplify right side
    507,361.27x = 266,109,784,666.71
  5. Step 5: Solve for x
    x = 266,109,784,666.71/507,361.27
  6. Step 6: Final answer
    x = 524,497.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.