Home / 1,235,138.39-1,704,166.99-711,720.23

Finding the Fourth Proportional to 1,235,138.39, 1,704,166.99 and 711,720.23

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Solution

The fourth proportional to 1,235,138.39, 1,704,166.99 and 711,720.23 is: 981,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,138.39 : 1,704,166.99 = 711,720.23 : x
  2. Step 2: Convert to fraction form
    1,235,138.39/1,704,166.99 = 711,720.23/x
  3. Step 3: Cross multiply
    1,235,138.39x = 1,704,166.99 × 711,720.23
  4. Step 4: Simplify right side
    1,235,138.39x = 1,212,890,122,081.21
  5. Step 5: Solve for x
    x = 1,212,890,122,081.21/1,235,138.39
  6. Step 6: Final answer
    x = 981,987.23

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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.