Home / 1,611,121.40-2,418,549.30-864,625.40

Finding the Fourth Proportional to 1,611,121.40, 2,418,549.30 and 864,625.40

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Solution

The fourth proportional to 1,611,121.40, 2,418,549.30 and 864,625.40 is: 1,297,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,121.40 : 2,418,549.30 = 864,625.40 : x
  2. Step 2: Convert to fraction form
    1,611,121.40/2,418,549.30 = 864,625.40/x
  3. Step 3: Cross multiply
    1,611,121.40x = 2,418,549.30 × 864,625.40
  4. Step 4: Simplify right side
    1,611,121.40x = 2,091,139,155,932.22
  5. Step 5: Solve for x
    x = 2,091,139,155,932.22/1,611,121.40
  6. Step 6: Final answer
    x = 1,297,940.15

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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.