Home / 1,991,582.48-2,987,369.16-853,606.80

Finding the Fourth Proportional to 1,991,582.48, 2,987,369.16 and 853,606.80

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Solution

The fourth proportional to 1,991,582.48, 2,987,369.16 and 853,606.80 is: 1,280,408.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,582.48 : 2,987,369.16 = 853,606.80 : x
  2. Step 2: Convert to fraction form
    1,991,582.48/2,987,369.16 = 853,606.80/x
  3. Step 3: Cross multiply
    1,991,582.48x = 2,987,369.16 × 853,606.80
  4. Step 4: Simplify right side
    1,991,582.48x = 2,550,038,629,086.29
  5. Step 5: Solve for x
    x = 2,550,038,629,086.29/1,991,582.48
  6. Step 6: Final answer
    x = 1,280,408.25

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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.