Home / 1,240,311.60-1,711,608.20-696,451.68

Finding the Fourth Proportional to 1,240,311.60, 1,711,608.20 and 696,451.68

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Solution

The fourth proportional to 1,240,311.60, 1,711,608.20 and 696,451.68 is: 961,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,311.60 : 1,711,608.20 = 696,451.68 : x
  2. Step 2: Convert to fraction form
    1,240,311.60/1,711,608.20 = 696,451.68/x
  3. Step 3: Cross multiply
    1,240,311.60x = 1,711,608.20 × 696,451.68
  4. Step 4: Simplify right side
    1,240,311.60x = 1,192,052,406,391.78
  5. Step 5: Solve for x
    x = 1,192,052,406,391.78/1,240,311.60
  6. Step 6: Final answer
    x = 961,091.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.