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Finding the Fourth Proportional to 459,611.56, 634,230.66 and 287,606.44

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Solution

The fourth proportional to 459,611.56, 634,230.66 and 287,606.44 is: 396,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,611.56 : 634,230.66 = 287,606.44 : x
  2. Step 2: Convert to fraction form
    459,611.56/634,230.66 = 287,606.44/x
  3. Step 3: Cross multiply
    459,611.56x = 634,230.66 × 287,606.44
  4. Step 4: Simplify right side
    459,611.56x = 182,408,822,261.45
  5. Step 5: Solve for x
    x = 182,408,822,261.45/459,611.56
  6. Step 6: Final answer
    x = 396,876.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.