Home / 1,325,319.60-1,987,979.40-1,115,367.60

Finding the Fourth Proportional to 1,325,319.60, 1,987,979.40 and 1,115,367.60

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Solution

The fourth proportional to 1,325,319.60, 1,987,979.40 and 1,115,367.60 is: 1,673,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,319.60 : 1,987,979.40 = 1,115,367.60 : x
  2. Step 2: Convert to fraction form
    1,325,319.60/1,987,979.40 = 1,115,367.60/x
  3. Step 3: Cross multiply
    1,325,319.60x = 1,987,979.40 × 1,115,367.60
  4. Step 4: Simplify right side
    1,325,319.60x = 2,217,327,812,227.44
  5. Step 5: Solve for x
    x = 2,217,327,812,227.44/1,325,319.60
  6. Step 6: Final answer
    x = 1,673,051.40

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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.