Home / 2,143,641.11-3,213,015.46-863,428.71

Finding the Fourth Proportional to 2,143,641.11, 3,213,015.46 and 863,428.71

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Solution

The fourth proportional to 2,143,641.11, 3,213,015.46 and 863,428.71 is: 1,294,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,641.11 : 3,213,015.46 = 863,428.71 : x
  2. Step 2: Convert to fraction form
    2,143,641.11/3,213,015.46 = 863,428.71/x
  3. Step 3: Cross multiply
    2,143,641.11x = 3,213,015.46 × 863,428.71
  4. Step 4: Simplify right side
    2,143,641.11x = 2,774,209,803,728.09
  5. Step 5: Solve for x
    x = 2,774,209,803,728.09/2,143,641.11
  6. Step 6: Final answer
    x = 1,294,157.78

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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.