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Finding the Fourth Proportional to 478,601.61, 660,474.59 and 263,749.38

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Solution

The fourth proportional to 478,601.61, 660,474.59 and 263,749.38 is: 363,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,601.61 : 660,474.59 = 263,749.38 : x
  2. Step 2: Convert to fraction form
    478,601.61/660,474.59 = 263,749.38/x
  3. Step 3: Cross multiply
    478,601.61x = 660,474.59 × 263,749.38
  4. Step 4: Simplify right side
    478,601.61x = 174,199,762,299.51
  5. Step 5: Solve for x
    x = 174,199,762,299.51/478,601.61
  6. Step 6: Final answer
    x = 363,976.55

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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.