Home / 890,910.20-1,336,365.30-418,518.20

Finding the Fourth Proportional to 890,910.20, 1,336,365.30 and 418,518.20

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Solution

The fourth proportional to 890,910.20, 1,336,365.30 and 418,518.20 is: 627,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,910.20 : 1,336,365.30 = 418,518.20 : x
  2. Step 2: Convert to fraction form
    890,910.20/1,336,365.30 = 418,518.20/x
  3. Step 3: Cross multiply
    890,910.20x = 1,336,365.30 × 418,518.20
  4. Step 4: Simplify right side
    890,910.20x = 559,293,199,898.46
  5. Step 5: Solve for x
    x = 559,293,199,898.46/890,910.20
  6. Step 6: Final answer
    x = 627,777.30

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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.