Home / 1,620,121.80-2,429,016.30-910,367.40

Finding the Fourth Proportional to 1,620,121.80, 2,429,016.30 and 910,367.40

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Solution

The fourth proportional to 1,620,121.80, 2,429,016.30 and 910,367.40 is: 1,364,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,121.80 : 2,429,016.30 = 910,367.40 : x
  2. Step 2: Convert to fraction form
    1,620,121.80/2,429,016.30 = 910,367.40/x
  3. Step 3: Cross multiply
    1,620,121.80x = 2,429,016.30 × 910,367.40
  4. Step 4: Simplify right side
    1,620,121.80x = 2,211,297,253,588.62
  5. Step 5: Solve for x
    x = 2,211,297,253,588.62/1,620,121.80
  6. Step 6: Final answer
    x = 1,364,895.68

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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.