Home / 1,991,609.27-2,987,409.34-853,633.58

Finding the Fourth Proportional to 1,991,609.27, 2,987,409.34 and 853,633.58

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Solution

The fourth proportional to 1,991,609.27, 2,987,409.34 and 853,633.58 is: 1,280,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,609.27 : 2,987,409.34 = 853,633.58 : x
  2. Step 2: Convert to fraction form
    1,991,609.27/2,987,409.34 = 853,633.58/x
  3. Step 3: Cross multiply
    1,991,609.27x = 2,987,409.34 × 853,633.58
  4. Step 4: Simplify right side
    1,991,609.27x = 2,550,152,925,561.47
  5. Step 5: Solve for x
    x = 2,550,152,925,561.47/1,991,609.27
  6. Step 6: Final answer
    x = 1,280,448.41

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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.