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Finding the Fourth Proportional to 478,974.87, 660,936.92 and 264,109.41

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Solution

The fourth proportional to 478,974.87, 660,936.92 and 264,109.41 is: 364,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,974.87 : 660,936.92 = 264,109.41 : x
  2. Step 2: Convert to fraction form
    478,974.87/660,936.92 = 264,109.41/x
  3. Step 3: Cross multiply
    478,974.87x = 660,936.92 × 264,109.41
  4. Step 4: Simplify right side
    478,974.87x = 174,559,658,667.87
  5. Step 5: Solve for x
    x = 174,559,658,667.87/478,974.87
  6. Step 6: Final answer
    x = 364,444.29

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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.