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Finding the Fourth Proportional to 478,956.78, 660,947.58 and 264,093.12

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Solution

The fourth proportional to 478,956.78, 660,947.58 and 264,093.12 is: 364,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,956.78 : 660,947.58 = 264,093.12 : x
  2. Step 2: Convert to fraction form
    478,956.78/660,947.58 = 264,093.12/x
  3. Step 3: Cross multiply
    478,956.78x = 660,947.58 × 264,093.12
  4. Step 4: Simplify right side
    478,956.78x = 174,551,708,558.65
  5. Step 5: Solve for x
    x = 174,551,708,558.65/478,956.78
  6. Step 6: Final answer
    x = 364,441.46

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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.