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Finding the Fourth Proportional to 478,576.89, 660,450.24 and 263,730.74

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Solution

The fourth proportional to 478,576.89, 660,450.24 and 263,730.74 is: 363,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,576.89 : 660,450.24 = 263,730.74 : x
  2. Step 2: Convert to fraction form
    478,576.89/660,450.24 = 263,730.74/x
  3. Step 3: Cross multiply
    478,576.89x = 660,450.24 × 263,730.74
  4. Step 4: Simplify right side
    478,576.89x = 174,181,027,226.13
  5. Step 5: Solve for x
    x = 174,181,027,226.13/478,576.89
  6. Step 6: Final answer
    x = 363,956.20

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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.