Home / 1,485,200.10-2,227,581.45-420,349.80

Finding the Fourth Proportional to 1,485,200.10, 2,227,581.45 and 420,349.80

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Solution

The fourth proportional to 1,485,200.10, 2,227,581.45 and 420,349.80 is: 630,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,200.10 : 2,227,581.45 = 420,349.80 : x
  2. Step 2: Convert to fraction form
    1,485,200.10/2,227,581.45 = 420,349.80/x
  3. Step 3: Cross multiply
    1,485,200.10x = 2,227,581.45 × 420,349.80
  4. Step 4: Simplify right side
    1,485,200.10x = 936,363,416,991.21
  5. Step 5: Solve for x
    x = 936,363,416,991.21/1,485,200.10
  6. Step 6: Final answer
    x = 630,462.80

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Double scale
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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.