Home / 1,242,365.67-1,863,589.95-343,732.23

Finding the Fourth Proportional to 1,242,365.67, 1,863,589.95 and 343,732.23

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Solution

The fourth proportional to 1,242,365.67, 1,863,589.95 and 343,732.23 is: 515,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,365.67 : 1,863,589.95 = 343,732.23 : x
  2. Step 2: Convert to fraction form
    1,242,365.67/1,863,589.95 = 343,732.23/x
  3. Step 3: Cross multiply
    1,242,365.67x = 1,863,589.95 × 343,732.23
  4. Step 4: Simplify right side
    1,242,365.67x = 640,575,929,319.09
  5. Step 5: Solve for x
    x = 640,575,929,319.09/1,242,365.67
  6. Step 6: Final answer
    x = 515,609.81

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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.