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Finding the Fourth Proportional to 478,762, 660,693.28 and 263,897.44

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Solution

The fourth proportional to 478,762, 660,693.28 and 263,897.44 is: 364,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,762 : 660,693.28 = 263,897.44 : x
  2. Step 2: Convert to fraction form
    478,762/660,693.28 = 263,897.44/x
  3. Step 3: Cross multiply
    478,762x = 660,693.28 × 263,897.44
  4. Step 4: Simplify right side
    478,762x = 174,355,265,217.20
  5. Step 5: Solve for x
    x = 174,355,265,217.20/478,762
  6. Step 6: Final answer
    x = 364,179.42

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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.