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Finding the Fourth Proportional to 637,270.20, 955,905.30 and 609,276.60

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Solution

The fourth proportional to 637,270.20, 955,905.30 and 609,276.60 is: 913,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,270.20 : 955,905.30 = 609,276.60 : x
  2. Step 2: Convert to fraction form
    637,270.20/955,905.30 = 609,276.60/x
  3. Step 3: Cross multiply
    637,270.20x = 955,905.30 × 609,276.60
  4. Step 4: Simplify right side
    637,270.20x = 582,410,731,105.98
  5. Step 5: Solve for x
    x = 582,410,731,105.98/637,270.20
  6. Step 6: Final answer
    x = 913,914.90

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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.