Home / 1,242,339.82-1,863,551.15-343,706.31

Finding the Fourth Proportional to 1,242,339.82, 1,863,551.15 and 343,706.31

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Solution

The fourth proportional to 1,242,339.82, 1,863,551.15 and 343,706.31 is: 515,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,339.82 : 1,863,551.15 = 343,706.31 : x
  2. Step 2: Convert to fraction form
    1,242,339.82/1,863,551.15 = 343,706.31/x
  3. Step 3: Cross multiply
    1,242,339.82x = 1,863,551.15 × 343,706.31
  4. Step 4: Simplify right side
    1,242,339.82x = 640,514,289,262.76
  5. Step 5: Solve for x
    x = 640,514,289,262.76/1,242,339.82
  6. Step 6: Final answer
    x = 515,570.92

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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.