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Finding the Fourth Proportional to 478,601.46, 660,474.45 and 263,749.23

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Solution

The fourth proportional to 478,601.46, 660,474.45 and 263,749.23 is: 363,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,601.46 : 660,474.45 = 263,749.23 : x
  2. Step 2: Convert to fraction form
    478,601.46/660,474.45 = 263,749.23/x
  3. Step 3: Cross multiply
    478,601.46x = 660,474.45 × 263,749.23
  4. Step 4: Simplify right side
    478,601.46x = 174,199,627,622.17
  5. Step 5: Solve for x
    x = 174,199,627,622.17/478,601.46
  6. Step 6: Final answer
    x = 363,976.38

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1.5x scale

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.