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Finding the Fourth Proportional to 478,783.26, 660,725.28 and 263,930.94

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Solution

The fourth proportional to 478,783.26, 660,725.28 and 263,930.94 is: 364,227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,783.26 : 660,725.28 = 263,930.94 : x
  2. Step 2: Convert to fraction form
    478,783.26/660,725.28 = 263,930.94/x
  3. Step 3: Cross multiply
    478,783.26x = 660,725.28 × 263,930.94
  4. Step 4: Simplify right side
    478,783.26x = 174,385,844,232.16
  5. Step 5: Solve for x
    x = 174,385,844,232.16/478,783.26
  6. Step 6: Final answer
    x = 364,227.11

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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.