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Finding the Fourth Proportional to 961,806.30, 1,440,808.65 and 843,611.10

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Solution

The fourth proportional to 961,806.30, 1,440,808.65 and 843,611.10 is: 1,263,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,806.30 : 1,440,808.65 = 843,611.10 : x
  2. Step 2: Convert to fraction form
    961,806.30/1,440,808.65 = 843,611.10/x
  3. Step 3: Cross multiply
    961,806.30x = 1,440,808.65 × 843,611.10
  4. Step 4: Simplify right side
    961,806.30x = 1,215,482,170,116.01
  5. Step 5: Solve for x
    x = 1,215,482,170,116.01/961,806.30
  6. Step 6: Final answer
    x = 1,263,749.44

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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.