Home / 1,485,228.90-2,227,929.24-420,181.74

Finding the Fourth Proportional to 1,485,228.90, 2,227,929.24 and 420,181.74

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Solution

The fourth proportional to 1,485,228.90, 2,227,929.24 and 420,181.74 is: 630,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,228.90 : 2,227,929.24 = 420,181.74 : x
  2. Step 2: Convert to fraction form
    1,485,228.90/2,227,929.24 = 420,181.74/x
  3. Step 3: Cross multiply
    1,485,228.90x = 2,227,929.24 × 420,181.74
  4. Step 4: Simplify right side
    1,485,228.90x = 936,135,184,660.08
  5. Step 5: Solve for x
    x = 936,135,184,660.08/1,485,228.90
  6. Step 6: Final answer
    x = 630,296.91

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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.