Home / 1,485,206.10-2,227,590.45-420,355.80

Finding the Fourth Proportional to 1,485,206.10, 2,227,590.45 and 420,355.80

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Solution

The fourth proportional to 1,485,206.10, 2,227,590.45 and 420,355.80 is: 630,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,206.10 : 2,227,590.45 = 420,355.80 : x
  2. Step 2: Convert to fraction form
    1,485,206.10/2,227,590.45 = 420,355.80/x
  3. Step 3: Cross multiply
    1,485,206.10x = 2,227,590.45 × 420,355.80
  4. Step 4: Simplify right side
    1,485,206.10x = 936,380,565,682.11
  5. Step 5: Solve for x
    x = 936,380,565,682.11/1,485,206.10
  6. Step 6: Final answer
    x = 630,471.80

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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.