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Finding the Fourth Proportional to 478,602.75, 660,476.13 and 263,750.52

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Solution

The fourth proportional to 478,602.75, 660,476.13 and 263,750.52 is: 363,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,602.75 : 660,476.13 = 263,750.52 : x
  2. Step 2: Convert to fraction form
    478,602.75/660,476.13 = 263,750.52/x
  3. Step 3: Cross multiply
    478,602.75x = 660,476.13 × 263,750.52
  4. Step 4: Simplify right side
    478,602.75x = 174,200,922,735.09
  5. Step 5: Solve for x
    x = 174,200,922,735.09/478,602.75
  6. Step 6: Final answer
    x = 363,978.11

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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.