Home / 1,485,257.04-2,228,003.28-420,305.76

Finding the Fourth Proportional to 1,485,257.04, 2,228,003.28 and 420,305.76

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Solution

The fourth proportional to 1,485,257.04, 2,228,003.28 and 420,305.76 is: 630,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,257.04 : 2,228,003.28 = 420,305.76 : x
  2. Step 2: Convert to fraction form
    1,485,257.04/2,228,003.28 = 420,305.76/x
  3. Step 3: Cross multiply
    1,485,257.04x = 2,228,003.28 × 420,305.76
  4. Step 4: Simplify right side
    1,485,257.04x = 936,442,611,882.89
  5. Step 5: Solve for x
    x = 936,442,611,882.89/1,485,257.04
  6. Step 6: Final answer
    x = 630,491.95

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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.