Home / 1,242,874.67-1,864,313.82-378,317.12

Finding the Fourth Proportional to 1,242,874.67, 1,864,313.82 and 378,317.12

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Solution

The fourth proportional to 1,242,874.67, 1,864,313.82 and 378,317.12 is: 567,476.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,874.67 : 1,864,313.82 = 378,317.12 : x
  2. Step 2: Convert to fraction form
    1,242,874.67/1,864,313.82 = 378,317.12/x
  3. Step 3: Cross multiply
    1,242,874.67x = 1,864,313.82 × 378,317.12
  4. Step 4: Simplify right side
    1,242,874.67x = 705,301,825,837.03
  5. Step 5: Solve for x
    x = 705,301,825,837.03/1,242,874.67
  6. Step 6: Final answer
    x = 567,476.23

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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.