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Finding the Fourth Proportional to 478,703.92, 660,615.44 and 263,844.52

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Solution

The fourth proportional to 478,703.92, 660,615.44 and 263,844.52 is: 364,107.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,703.92 : 660,615.44 = 263,844.52 : x
  2. Step 2: Convert to fraction form
    478,703.92/660,615.44 = 263,844.52/x
  3. Step 3: Cross multiply
    478,703.92x = 660,615.44 × 263,844.52
  4. Step 4: Simplify right side
    478,703.92x = 174,299,763,671.39
  5. Step 5: Solve for x
    x = 174,299,763,671.39/478,703.92
  6. Step 6: Final answer
    x = 364,107.66

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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.