Home / 1,142,009.22-1,713,015.09-343,290.70

Finding the Fourth Proportional to 1,142,009.22, 1,713,015.09 and 343,290.70

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Solution

The fourth proportional to 1,142,009.22, 1,713,015.09 and 343,290.70 is: 514,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,009.22 : 1,713,015.09 = 343,290.70 : x
  2. Step 2: Convert to fraction form
    1,142,009.22/1,713,015.09 = 343,290.70/x
  3. Step 3: Cross multiply
    1,142,009.22x = 1,713,015.09 × 343,290.70
  4. Step 4: Simplify right side
    1,142,009.22x = 588,062,145,074.13
  5. Step 5: Solve for x
    x = 588,062,145,074.13/1,142,009.22
  6. Step 6: Final answer
    x = 514,936.43

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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.