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Finding the Fourth Proportional to 478,593.63, 660,463.57 and 263,741.40

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Solution

The fourth proportional to 478,593.63, 660,463.57 and 263,741.40 is: 363,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,593.63 : 660,463.57 = 263,741.40 : x
  2. Step 2: Convert to fraction form
    478,593.63/660,463.57 = 263,741.40/x
  3. Step 3: Cross multiply
    478,593.63x = 660,463.57 × 263,741.40
  4. Step 4: Simplify right side
    478,593.63x = 174,191,583,135.03
  5. Step 5: Solve for x
    x = 174,191,583,135.03/478,593.63
  6. Step 6: Final answer
    x = 363,965.53

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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.