Home / 1,491,972.75-2,058,922.40-812,909.25

Finding the Fourth Proportional to 1,491,972.75, 2,058,922.40 and 812,909.25

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Solution

The fourth proportional to 1,491,972.75, 2,058,922.40 and 812,909.25 is: 1,121,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,972.75 : 2,058,922.40 = 812,909.25 : x
  2. Step 2: Convert to fraction form
    1,491,972.75/2,058,922.40 = 812,909.25/x
  3. Step 3: Cross multiply
    1,491,972.75x = 2,058,922.40 × 812,909.25
  4. Step 4: Simplify right side
    1,491,972.75x = 1,673,717,059,927.65
  5. Step 5: Solve for x
    x = 1,673,717,059,927.65/1,491,972.75
  6. Step 6: Final answer
    x = 1,121,814.77

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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.