Home / 2,186,116.80-3,279,175.20-690,014.40

Finding the Fourth Proportional to 2,186,116.80, 3,279,175.20 and 690,014.40

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Solution

The fourth proportional to 2,186,116.80, 3,279,175.20 and 690,014.40 is: 1,035,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,116.80 : 3,279,175.20 = 690,014.40 : x
  2. Step 2: Convert to fraction form
    2,186,116.80/3,279,175.20 = 690,014.40/x
  3. Step 3: Cross multiply
    2,186,116.80x = 3,279,175.20 × 690,014.40
  4. Step 4: Simplify right side
    2,186,116.80x = 2,262,678,108,122.88
  5. Step 5: Solve for x
    x = 2,262,678,108,122.88/2,186,116.80
  6. Step 6: Final answer
    x = 1,035,021.60

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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.