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Finding the Fourth Proportional to 478,893.62, 660,902.82 and 264,033.20

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Solution

The fourth proportional to 478,893.62, 660,902.82 and 264,033.20 is: 364,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,893.62 : 660,902.82 = 264,033.20 : x
  2. Step 2: Convert to fraction form
    478,893.62/660,902.82 = 264,033.20/x
  3. Step 3: Cross multiply
    478,893.62x = 660,902.82 × 264,033.20
  4. Step 4: Simplify right side
    478,893.62x = 174,500,286,453.62
  5. Step 5: Solve for x
    x = 174,500,286,453.62/478,893.62
  6. Step 6: Final answer
    x = 364,382.15

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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.