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Finding the Fourth Proportional to 478,777.44, 660,752.66 and 263,959.50

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Solution

The fourth proportional to 478,777.44, 660,752.66 and 263,959.50 is: 364,286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,777.44 : 660,752.66 = 263,959.50 : x
  2. Step 2: Convert to fraction form
    478,777.44/660,752.66 = 263,959.50/x
  3. Step 3: Cross multiply
    478,777.44x = 660,752.66 × 263,959.50
  4. Step 4: Simplify right side
    478,777.44x = 174,411,941,757.27
  5. Step 5: Solve for x
    x = 174,411,941,757.27/478,777.44
  6. Step 6: Final answer
    x = 364,286.05

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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.