Home / 1,991,867.56-2,987,795.40-853,892.08

Finding the Fourth Proportional to 1,991,867.56, 2,987,795.40 and 853,892.08

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Solution

The fourth proportional to 1,991,867.56, 2,987,795.40 and 853,892.08 is: 1,280,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,867.56 : 2,987,795.40 = 853,892.08 : x
  2. Step 2: Convert to fraction form
    1,991,867.56/2,987,795.40 = 853,892.08/x
  3. Step 3: Cross multiply
    1,991,867.56x = 2,987,795.40 × 853,892.08
  4. Step 4: Simplify right side
    1,991,867.56x = 2,551,254,828,720.43
  5. Step 5: Solve for x
    x = 2,551,254,828,720.43/1,991,867.56
  6. Step 6: Final answer
    x = 1,280,835.57

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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.