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Finding the Fourth Proportional to 514,435.22, 709,912.94 and 284,992.03

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Solution

The fourth proportional to 514,435.22, 709,912.94 and 284,992.03 is: 393,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,435.22 : 709,912.94 = 284,992.03 : x
  2. Step 2: Convert to fraction form
    514,435.22/709,912.94 = 284,992.03/x
  3. Step 3: Cross multiply
    514,435.22x = 709,912.94 × 284,992.03
  4. Step 4: Simplify right side
    514,435.22x = 202,319,524,919.34
  5. Step 5: Solve for x
    x = 202,319,524,919.34/514,435.22
  6. Step 6: Final answer
    x = 393,284.75

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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.