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Finding the Fourth Proportional to 478,641.48, 660,525.24 and 263,781.54

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Solution

The fourth proportional to 478,641.48, 660,525.24 and 263,781.54 is: 364,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,641.48 : 660,525.24 = 263,781.54 : x
  2. Step 2: Convert to fraction form
    478,641.48/660,525.24 = 263,781.54/x
  3. Step 3: Cross multiply
    478,641.48x = 660,525.24 × 263,781.54
  4. Step 4: Simplify right side
    478,641.48x = 174,234,365,016.07
  5. Step 5: Solve for x
    x = 174,234,365,016.07/478,641.48
  6. Step 6: Final answer
    x = 364,018.52

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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.