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Finding the Fourth Proportional to 503,057.72, 753,324.64 and 300,528.88

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Solution

The fourth proportional to 503,057.72, 753,324.64 and 300,528.88 is: 450,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,057.72 : 753,324.64 = 300,528.88 : x
  2. Step 2: Convert to fraction form
    503,057.72/753,324.64 = 300,528.88/x
  3. Step 3: Cross multiply
    503,057.72x = 753,324.64 × 300,528.88
  4. Step 4: Simplify right side
    503,057.72x = 226,395,810,335.60
  5. Step 5: Solve for x
    x = 226,395,810,335.60/503,057.72
  6. Step 6: Final answer
    x = 450,039.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.