Home / 694,520.80-1,041,781.20-221,202.40

Finding the Fourth Proportional to 694,520.80, 1,041,781.20 and 221,202.40

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Solution

The fourth proportional to 694,520.80, 1,041,781.20 and 221,202.40 is: 331,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,520.80 : 1,041,781.20 = 221,202.40 : x
  2. Step 2: Convert to fraction form
    694,520.80/1,041,781.20 = 221,202.40/x
  3. Step 3: Cross multiply
    694,520.80x = 1,041,781.20 × 221,202.40
  4. Step 4: Simplify right side
    694,520.80x = 230,444,501,714.88
  5. Step 5: Solve for x
    x = 230,444,501,714.88/694,520.80
  6. Step 6: Final answer
    x = 331,803.60

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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.