Home / 1,103,238.63-1,654,874.60-420,163.30

Finding the Fourth Proportional to 1,103,238.63, 1,654,874.60 and 420,163.30

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Solution

The fourth proportional to 1,103,238.63, 1,654,874.60 and 420,163.30 is: 630,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,238.63 : 1,654,874.60 = 420,163.30 : x
  2. Step 2: Convert to fraction form
    1,103,238.63/1,654,874.60 = 420,163.30/x
  3. Step 3: Cross multiply
    1,103,238.63x = 1,654,874.60 × 420,163.30
  4. Step 4: Simplify right side
    1,103,238.63x = 695,317,577,668.46
  5. Step 5: Solve for x
    x = 695,317,577,668.46/1,103,238.63
  6. Step 6: Final answer
    x = 630,251.30

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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.