Home / 1,431,231.30-2,146,514.81-420,081.75

Finding the Fourth Proportional to 1,431,231.30, 2,146,514.81 and 420,081.75

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Solution

The fourth proportional to 1,431,231.30, 2,146,514.81 and 420,081.75 is: 630,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,231.30 : 2,146,514.81 = 420,081.75 : x
  2. Step 2: Convert to fraction form
    1,431,231.30/2,146,514.81 = 420,081.75/x
  3. Step 3: Cross multiply
    1,431,231.30x = 2,146,514.81 × 420,081.75
  4. Step 4: Simplify right side
    1,431,231.30x = 901,711,695,685.31
  5. Step 5: Solve for x
    x = 901,711,695,685.31/1,431,231.30
  6. Step 6: Final answer
    x = 630,025.14

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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.