Home / 1,445,231.80-2,165,514.90-1,207,286.20

Finding the Fourth Proportional to 1,445,231.80, 2,165,514.90 and 1,207,286.20

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Solution

The fourth proportional to 1,445,231.80, 2,165,514.90 and 1,207,286.20 is: 1,808,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,231.80 : 2,165,514.90 = 1,207,286.20 : x
  2. Step 2: Convert to fraction form
    1,445,231.80/2,165,514.90 = 1,207,286.20/x
  3. Step 3: Cross multiply
    1,445,231.80x = 2,165,514.90 × 1,207,286.20
  4. Step 4: Simplify right side
    1,445,231.80x = 2,614,396,254,664.38
  5. Step 5: Solve for x
    x = 2,614,396,254,664.38/1,445,231.80
  6. Step 6: Final answer
    x = 1,808,980.58

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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.