Home / 1,345,665.09-2,016,212.66-812,064.88

Finding the Fourth Proportional to 1,345,665.09, 2,016,212.66 and 812,064.88

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Solution

The fourth proportional to 1,345,665.09, 2,016,212.66 and 812,064.88 is: 1,216,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,665.09 : 2,016,212.66 = 812,064.88 : x
  2. Step 2: Convert to fraction form
    1,345,665.09/2,016,212.66 = 812,064.88/x
  3. Step 3: Cross multiply
    1,345,665.09x = 2,016,212.66 × 812,064.88
  4. Step 4: Simplify right side
    1,345,665.09x = 1,637,295,481,716.32
  5. Step 5: Solve for x
    x = 1,637,295,481,716.32/1,345,665.09
  6. Step 6: Final answer
    x = 1,216,718.40

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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.