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Finding the Fourth Proportional to 478,602.96, 660,476.52 and 263,750.73

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Solution

The fourth proportional to 478,602.96, 660,476.52 and 263,750.73 is: 363,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,602.96 : 660,476.52 = 263,750.73 : x
  2. Step 2: Convert to fraction form
    478,602.96/660,476.52 = 263,750.73/x
  3. Step 3: Cross multiply
    478,602.96x = 660,476.52 × 263,750.73
  4. Step 4: Simplify right side
    478,602.96x = 174,201,164,297.86
  5. Step 5: Solve for x
    x = 174,201,164,297.86/478,602.96
  6. Step 6: Final answer
    x = 363,978.45

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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.