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Finding the Fourth Proportional to 478,925.28, 660,921.84 and 264,072.96

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Solution

The fourth proportional to 478,925.28, 660,921.84 and 264,072.96 is: 364,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,925.28 : 660,921.84 = 264,072.96 : x
  2. Step 2: Convert to fraction form
    478,925.28/660,921.84 = 264,072.96/x
  3. Step 3: Cross multiply
    478,925.28x = 660,921.84 × 264,072.96
  4. Step 4: Simplify right side
    478,925.28x = 174,531,586,617.45
  5. Step 5: Solve for x
    x = 174,531,586,617.45/478,925.28
  6. Step 6: Final answer
    x = 364,423.42

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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.