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Finding the Fourth Proportional to 487,484.26, 731,542.12 and 262,999.64

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Solution

The fourth proportional to 487,484.26, 731,542.12 and 262,999.64 is: 394,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,484.26 : 731,542.12 = 262,999.64 : x
  2. Step 2: Convert to fraction form
    487,484.26/731,542.12 = 262,999.64/x
  3. Step 3: Cross multiply
    487,484.26x = 731,542.12 × 262,999.64
  4. Step 4: Simplify right side
    487,484.26x = 192,395,315,376.19
  5. Step 5: Solve for x
    x = 192,395,315,376.19/487,484.26
  6. Step 6: Final answer
    x = 394,669.80

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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.