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Finding the Fourth Proportional to 728,714.70, 1,093,072.05 and 528,093.90

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Solution

The fourth proportional to 728,714.70, 1,093,072.05 and 528,093.90 is: 792,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,714.70 : 1,093,072.05 = 528,093.90 : x
  2. Step 2: Convert to fraction form
    728,714.70/1,093,072.05 = 528,093.90/x
  3. Step 3: Cross multiply
    728,714.70x = 1,093,072.05 × 528,093.90
  4. Step 4: Simplify right side
    728,714.70x = 577,244,681,865.50
  5. Step 5: Solve for x
    x = 577,244,681,865.50/728,714.70
  6. Step 6: Final answer
    x = 792,140.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.