Home / 1,490,784.75-2,057,282.96-811,721.25

Finding the Fourth Proportional to 1,490,784.75, 2,057,282.96 and 811,721.25

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Solution

The fourth proportional to 1,490,784.75, 2,057,282.96 and 811,721.25 is: 1,120,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,784.75 : 2,057,282.96 = 811,721.25 : x
  2. Step 2: Convert to fraction form
    1,490,784.75/2,057,282.96 = 811,721.25/x
  3. Step 3: Cross multiply
    1,490,784.75x = 2,057,282.96 × 811,721.25
  4. Step 4: Simplify right side
    1,490,784.75x = 1,669,940,291,836.29
  5. Step 5: Solve for x
    x = 1,669,940,291,836.29/1,490,784.75
  6. Step 6: Final answer
    x = 1,120,175.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.