Home / 2,143,245.35-3,215,428.23-1,243,822.47

Finding the Fourth Proportional to 2,143,245.35, 3,215,428.23 and 1,243,822.47

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Solution

The fourth proportional to 2,143,245.35, 3,215,428.23 and 1,243,822.47 is: 1,866,058.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,245.35 : 3,215,428.23 = 1,243,822.47 : x
  2. Step 2: Convert to fraction form
    2,143,245.35/3,215,428.23 = 1,243,822.47/x
  3. Step 3: Cross multiply
    2,143,245.35x = 3,215,428.23 × 1,243,822.47
  4. Step 4: Simplify right side
    2,143,245.35x = 3,999,421,883,146.33
  5. Step 5: Solve for x
    x = 3,999,421,883,146.33/2,143,245.35
  6. Step 6: Final answer
    x = 1,866,058.82

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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.