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Finding the Fourth Proportional to 542,611.27, 748,789.35 and 300,893.08

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Solution

The fourth proportional to 542,611.27, 748,789.35 and 300,893.08 is: 415,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,611.27 : 748,789.35 = 300,893.08 : x
  2. Step 2: Convert to fraction form
    542,611.27/748,789.35 = 300,893.08/x
  3. Step 3: Cross multiply
    542,611.27x = 748,789.35 × 300,893.08
  4. Step 4: Simplify right side
    542,611.27x = 225,305,533,792.70
  5. Step 5: Solve for x
    x = 225,305,533,792.70/542,611.27
  6. Step 6: Final answer
    x = 415,224.57

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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.