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Finding the Fourth Proportional to 550,784.10, 825,684.12 and 266,315.52

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Solution

The fourth proportional to 550,784.10, 825,684.12 and 266,315.52 is: 399,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,784.10 : 825,684.12 = 266,315.52 : x
  2. Step 2: Convert to fraction form
    550,784.10/825,684.12 = 266,315.52/x
  3. Step 3: Cross multiply
    550,784.10x = 825,684.12 × 266,315.52
  4. Step 4: Simplify right side
    550,784.10x = 219,892,495,773.54
  5. Step 5: Solve for x
    x = 219,892,495,773.54/550,784.10
  6. Step 6: Final answer
    x = 399,235.37

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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.