Home / 874,580.21-1,206,508.33-511,781.51

Finding the Fourth Proportional to 874,580.21, 1,206,508.33 and 511,781.51

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Solution

The fourth proportional to 874,580.21, 1,206,508.33 and 511,781.51 is: 706,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,580.21 : 1,206,508.33 = 511,781.51 : x
  2. Step 2: Convert to fraction form
    874,580.21/1,206,508.33 = 511,781.51/x
  3. Step 3: Cross multiply
    874,580.21x = 1,206,508.33 × 511,781.51
  4. Step 4: Simplify right side
    874,580.21x = 617,468,654,954.98
  5. Step 5: Solve for x
    x = 617,468,654,954.98/874,580.21
  6. Step 6: Final answer
    x = 706,017.18

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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.