Home / 1,211,267.10-1,816,900.65-1,120,028.70

Finding the Fourth Proportional to 1,211,267.10, 1,816,900.65 and 1,120,028.70

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Solution

The fourth proportional to 1,211,267.10, 1,816,900.65 and 1,120,028.70 is: 1,680,043.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,267.10 : 1,816,900.65 = 1,120,028.70 : x
  2. Step 2: Convert to fraction form
    1,211,267.10/1,816,900.65 = 1,120,028.70/x
  3. Step 3: Cross multiply
    1,211,267.10x = 1,816,900.65 × 1,120,028.70
  4. Step 4: Simplify right side
    1,211,267.10x = 2,034,980,873,048.65
  5. Step 5: Solve for x
    x = 2,034,980,873,048.65/1,211,267.10
  6. Step 6: Final answer
    x = 1,680,043.05

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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.