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Finding the Fourth Proportional to 663,090.60, 994,635.90 and 558,114.60

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Solution

The fourth proportional to 663,090.60, 994,635.90 and 558,114.60 is: 837,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,090.60 : 994,635.90 = 558,114.60 : x
  2. Step 2: Convert to fraction form
    663,090.60/994,635.90 = 558,114.60/x
  3. Step 3: Cross multiply
    663,090.60x = 994,635.90 × 558,114.60
  4. Step 4: Simplify right side
    663,090.60x = 555,120,817,474.14
  5. Step 5: Solve for x
    x = 555,120,817,474.14/663,090.60
  6. Step 6: Final answer
    x = 837,171.90

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Double scale
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Similar ratio
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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.