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Finding the Fourth Proportional to 478,601.25, 660,474.06 and 263,749.02

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Solution

The fourth proportional to 478,601.25, 660,474.06 and 263,749.02 is: 363,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,601.25 : 660,474.06 = 263,749.02 : x
  2. Step 2: Convert to fraction form
    478,601.25/660,474.06 = 263,749.02/x
  3. Step 3: Cross multiply
    478,601.25x = 660,474.06 × 263,749.02
  4. Step 4: Simplify right side
    478,601.25x = 174,199,386,060.42
  5. Step 5: Solve for x
    x = 174,199,386,060.42/478,601.25
  6. Step 6: Final answer
    x = 363,976.04

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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.