Home / 1,245,279.80-1,867,919.70-1,133,086.70

Finding the Fourth Proportional to 1,245,279.80, 1,867,919.70 and 1,133,086.70

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Solution

The fourth proportional to 1,245,279.80, 1,867,919.70 and 1,133,086.70 is: 1,699,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,279.80 : 1,867,919.70 = 1,133,086.70 : x
  2. Step 2: Convert to fraction form
    1,245,279.80/1,867,919.70 = 1,133,086.70/x
  3. Step 3: Cross multiply
    1,245,279.80x = 1,867,919.70 × 1,133,086.70
  4. Step 4: Simplify right side
    1,245,279.80x = 2,116,514,968,737.99
  5. Step 5: Solve for x
    x = 2,116,514,968,737.99/1,245,279.80
  6. Step 6: Final answer
    x = 1,699,630.05

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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.