Home / 805,837.21-1,208,663.57-300,414.83

Finding the Fourth Proportional to 805,837.21, 1,208,663.57 and 300,414.83

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Solution

The fourth proportional to 805,837.21, 1,208,663.57 and 300,414.83 is: 450,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,837.21 : 1,208,663.57 = 300,414.83 : x
  2. Step 2: Convert to fraction form
    805,837.21/1,208,663.57 = 300,414.83/x
  3. Step 3: Cross multiply
    805,837.21x = 1,208,663.57 × 300,414.83
  4. Step 4: Simplify right side
    805,837.21x = 363,100,455,616.46
  5. Step 5: Solve for x
    x = 363,100,455,616.46/805,837.21
  6. Step 6: Final answer
    x = 450,587.85

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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.