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Finding the Fourth Proportional to 552,494.20, 828,741.30 and 528,874.60

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Solution

The fourth proportional to 552,494.20, 828,741.30 and 528,874.60 is: 793,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,494.20 : 828,741.30 = 528,874.60 : x
  2. Step 2: Convert to fraction form
    552,494.20/828,741.30 = 528,874.60/x
  3. Step 3: Cross multiply
    552,494.20x = 828,741.30 × 528,874.60
  4. Step 4: Simplify right side
    552,494.20x = 438,300,223,540.98
  5. Step 5: Solve for x
    x = 438,300,223,540.98/552,494.20
  6. Step 6: Final answer
    x = 793,311.90

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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.