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Finding the Fourth Proportional to 478,513.44, 660,345.30 and 263,648.52

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Solution

The fourth proportional to 478,513.44, 660,345.30 and 263,648.52 is: 363,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,513.44 : 660,345.30 = 263,648.52 : x
  2. Step 2: Convert to fraction form
    478,513.44/660,345.30 = 263,648.52/x
  3. Step 3: Cross multiply
    478,513.44x = 660,345.30 × 263,648.52
  4. Step 4: Simplify right side
    478,513.44x = 174,099,061,033.96
  5. Step 5: Solve for x
    x = 174,099,061,033.96/478,513.44
  6. Step 6: Final answer
    x = 363,833.17

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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.