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Finding the Fourth Proportional to 536,626.60, 804,939.90 and 402,782.20

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Solution

The fourth proportional to 536,626.60, 804,939.90 and 402,782.20 is: 604,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,626.60 : 804,939.90 = 402,782.20 : x
  2. Step 2: Convert to fraction form
    536,626.60/804,939.90 = 402,782.20/x
  3. Step 3: Cross multiply
    536,626.60x = 804,939.90 × 402,782.20
  4. Step 4: Simplify right side
    536,626.60x = 324,215,463,789.78
  5. Step 5: Solve for x
    x = 324,215,463,789.78/536,626.60
  6. Step 6: Final answer
    x = 604,173.30

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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.