Home / 2,143,245.34-3,215,428.28-1,243,822.46

Finding the Fourth Proportional to 2,143,245.34, 3,215,428.28 and 1,243,822.46

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Solution

The fourth proportional to 2,143,245.34, 3,215,428.28 and 1,243,822.46 is: 1,866,058.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,245.34 : 3,215,428.28 = 1,243,822.46 : x
  2. Step 2: Convert to fraction form
    2,143,245.34/3,215,428.28 = 1,243,822.46/x
  3. Step 3: Cross multiply
    2,143,245.34x = 3,215,428.28 × 1,243,822.46
  4. Step 4: Simplify right side
    2,143,245.34x = 3,999,421,913,183.17
  5. Step 5: Solve for x
    x = 3,999,421,913,183.17/2,143,245.34
  6. Step 6: Final answer
    x = 1,866,058.84

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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.