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Finding the Fourth Proportional to 478,002.44, 659,640.84 and 263,136.98

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Solution

The fourth proportional to 478,002.44, 659,640.84 and 263,136.98 is: 363,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,002.44 : 659,640.84 = 263,136.98 : x
  2. Step 2: Convert to fraction form
    478,002.44/659,640.84 = 263,136.98/x
  3. Step 3: Cross multiply
    478,002.44x = 659,640.84 × 263,136.98
  4. Step 4: Simplify right side
    478,002.44x = 173,575,898,522.26
  5. Step 5: Solve for x
    x = 173,575,898,522.26/478,002.44
  6. Step 6: Final answer
    x = 363,127.64

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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.