Home / 874,579.21-1,206,506.95-511,780.52

Finding the Fourth Proportional to 874,579.21, 1,206,506.95 and 511,780.52

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Solution

The fourth proportional to 874,579.21, 1,206,506.95 and 511,780.52 is: 706,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,579.21 : 1,206,506.95 = 511,780.52 : x
  2. Step 2: Convert to fraction form
    874,579.21/1,206,506.95 = 511,780.52/x
  3. Step 3: Cross multiply
    874,579.21x = 1,206,506.95 × 511,780.52
  4. Step 4: Simplify right side
    874,579.21x = 617,466,755,991.43
  5. Step 5: Solve for x
    x = 617,466,755,991.43/874,579.21
  6. Step 6: Final answer
    x = 706,015.82

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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.