Home / 890,998.20-1,336,497.30-393,334.20

Finding the Fourth Proportional to 890,998.20, 1,336,497.30 and 393,334.20

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Solution

The fourth proportional to 890,998.20, 1,336,497.30 and 393,334.20 is: 590,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,998.20 : 1,336,497.30 = 393,334.20 : x
  2. Step 2: Convert to fraction form
    890,998.20/1,336,497.30 = 393,334.20/x
  3. Step 3: Cross multiply
    890,998.20x = 1,336,497.30 × 393,334.20
  4. Step 4: Simplify right side
    890,998.20x = 525,690,096,297.66
  5. Step 5: Solve for x
    x = 525,690,096,297.66/890,998.20
  6. Step 6: Final answer
    x = 590,001.30

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Half scale
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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.