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Finding the Fourth Proportional to 479,977.76, 662,410.34 and 265,141.28

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Solution

The fourth proportional to 479,977.76, 662,410.34 and 265,141.28 is: 365,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,977.76 : 662,410.34 = 265,141.28 : x
  2. Step 2: Convert to fraction form
    479,977.76/662,410.34 = 265,141.28/x
  3. Step 3: Cross multiply
    479,977.76x = 662,410.34 × 265,141.28
  4. Step 4: Simplify right side
    479,977.76x = 175,632,325,432.84
  5. Step 5: Solve for x
    x = 175,632,325,432.84/479,977.76
  6. Step 6: Final answer
    x = 365,917.63

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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.