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Finding the Fourth Proportional to 665,645.60, 998,468.40 and 508,181.60

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Solution

The fourth proportional to 665,645.60, 998,468.40 and 508,181.60 is: 762,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,645.60 : 998,468.40 = 508,181.60 : x
  2. Step 2: Convert to fraction form
    665,645.60/998,468.40 = 508,181.60/x
  3. Step 3: Cross multiply
    665,645.60x = 998,468.40 × 508,181.60
  4. Step 4: Simplify right side
    665,645.60x = 507,403,269,061.44
  5. Step 5: Solve for x
    x = 507,403,269,061.44/665,645.60
  6. Step 6: Final answer
    x = 762,272.40

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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.