Home / 529,747.60-794,621.40-520,999.60

Finding the Fourth Proportional to 529,747.60, 794,621.40 and 520,999.60

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Solution

The fourth proportional to 529,747.60, 794,621.40 and 520,999.60 is: 781,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,747.60 : 794,621.40 = 520,999.60 : x
  2. Step 2: Convert to fraction form
    529,747.60/794,621.40 = 520,999.60/x
  3. Step 3: Cross multiply
    529,747.60x = 794,621.40 × 520,999.60
  4. Step 4: Simplify right side
    529,747.60x = 413,997,431,551.44
  5. Step 5: Solve for x
    x = 413,997,431,551.44/529,747.60
  6. Step 6: Final answer
    x = 781,499.40

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Double scale
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Similar ratio
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1.5x scale

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.