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Finding the Fourth Proportional to 478,669.68, 660,548.52 and 263,805.84

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Solution

The fourth proportional to 478,669.68, 660,548.52 and 263,805.84 is: 364,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,669.68 : 660,548.52 = 263,805.84 : x
  2. Step 2: Convert to fraction form
    478,669.68/660,548.52 = 263,805.84/x
  3. Step 3: Cross multiply
    478,669.68x = 660,548.52 × 263,805.84
  4. Step 4: Simplify right side
    478,669.68x = 174,256,557,179.36
  5. Step 5: Solve for x
    x = 174,256,557,179.36/478,669.68
  6. Step 6: Final answer
    x = 364,043.44

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1.5x scale

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.