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Finding the Fourth Proportional to 662,164.20, 993,246.30 and 346,717.80

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Solution

The fourth proportional to 662,164.20, 993,246.30 and 346,717.80 is: 520,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,164.20 : 993,246.30 = 346,717.80 : x
  2. Step 2: Convert to fraction form
    662,164.20/993,246.30 = 346,717.80/x
  3. Step 3: Cross multiply
    662,164.20x = 993,246.30 × 346,717.80
  4. Step 4: Simplify right side
    662,164.20x = 344,376,171,994.14
  5. Step 5: Solve for x
    x = 344,376,171,994.14/662,164.20
  6. Step 6: Final answer
    x = 520,076.70

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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.