Home / 2,143,742.90-3,213,168.28-863,531.18

Finding the Fourth Proportional to 2,143,742.90, 3,213,168.28 and 863,531.18

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Solution

The fourth proportional to 2,143,742.90, 3,213,168.28 and 863,531.18 is: 1,294,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,742.90 : 3,213,168.28 = 863,531.18 : x
  2. Step 2: Convert to fraction form
    2,143,742.90/3,213,168.28 = 863,531.18/x
  3. Step 3: Cross multiply
    2,143,742.90x = 3,213,168.28 × 863,531.18
  4. Step 4: Simplify right side
    2,143,742.90x = 2,774,670,990,191.68
  5. Step 5: Solve for x
    x = 2,774,670,990,191.68/2,143,742.90
  6. Step 6: Final answer
    x = 1,294,311.46

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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.