Home / 1,242,355.82-1,863,575.45-343,722.38

Finding the Fourth Proportional to 1,242,355.82, 1,863,575.45 and 343,722.38

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Solution

The fourth proportional to 1,242,355.82, 1,863,575.45 and 343,722.38 is: 515,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,355.82 : 1,863,575.45 = 343,722.38 : x
  2. Step 2: Convert to fraction form
    1,242,355.82/1,863,575.45 = 343,722.38/x
  3. Step 3: Cross multiply
    1,242,355.82x = 1,863,575.45 × 343,722.38
  4. Step 4: Simplify right side
    1,242,355.82x = 640,552,587,264.96
  5. Step 5: Solve for x
    x = 640,552,587,264.96/1,242,355.82
  6. Step 6: Final answer
    x = 515,595.11

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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.