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Finding the Fourth Proportional to 478,361.44, 660,135.72 and 263,496.52

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Solution

The fourth proportional to 478,361.44, 660,135.72 and 263,496.52 is: 363,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,361.44 : 660,135.72 = 263,496.52 : x
  2. Step 2: Convert to fraction form
    478,361.44/660,135.72 = 263,496.52/x
  3. Step 3: Cross multiply
    478,361.44x = 660,135.72 × 263,496.52
  4. Step 4: Simplify right side
    478,361.44x = 173,943,464,947.69
  5. Step 5: Solve for x
    x = 173,943,464,947.69/478,361.44
  6. Step 6: Final answer
    x = 363,623.51

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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.