Home / 481,048.56-721,456.20-200,412.72

Finding the Fourth Proportional to 481,048.56, 721,456.20 and 200,412.72

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Solution

The fourth proportional to 481,048.56, 721,456.20 and 200,412.72 is: 300,570.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,048.56 : 721,456.20 = 200,412.72 : x
  2. Step 2: Convert to fraction form
    481,048.56/721,456.20 = 200,412.72/x
  3. Step 3: Cross multiply
    481,048.56x = 721,456.20 × 200,412.72
  4. Step 4: Simplify right side
    481,048.56x = 144,588,999,402.86
  5. Step 5: Solve for x
    x = 144,588,999,402.86/481,048.56
  6. Step 6: Final answer
    x = 300,570.49

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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.