Home / 1,418,074.75-2,127,112.13-420,802.75

Finding the Fourth Proportional to 1,418,074.75, 2,127,112.13 and 420,802.75

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Solution

The fourth proportional to 1,418,074.75, 2,127,112.13 and 420,802.75 is: 631,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,074.75 : 2,127,112.13 = 420,802.75 : x
  2. Step 2: Convert to fraction form
    1,418,074.75/2,127,112.13 = 420,802.75/x
  3. Step 3: Cross multiply
    1,418,074.75x = 2,127,112.13 × 420,802.75
  4. Step 4: Simplify right side
    1,418,074.75x = 895,094,633,862.36
  5. Step 5: Solve for x
    x = 895,094,633,862.36/1,418,074.75
  6. Step 6: Final answer
    x = 631,204.13

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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.