Home / 1,211,686.13-1,672,058.48-667,820.22

Finding the Fourth Proportional to 1,211,686.13, 1,672,058.48 and 667,820.22

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Solution

The fourth proportional to 1,211,686.13, 1,672,058.48 and 667,820.22 is: 921,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,686.13 : 1,672,058.48 = 667,820.22 : x
  2. Step 2: Convert to fraction form
    1,211,686.13/1,672,058.48 = 667,820.22/x
  3. Step 3: Cross multiply
    1,211,686.13x = 1,672,058.48 × 667,820.22
  4. Step 4: Simplify right side
    1,211,686.13x = 1,116,634,458,627.36
  5. Step 5: Solve for x
    x = 1,116,634,458,627.36/1,211,686.13
  6. Step 6: Final answer
    x = 921,554.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.