Home / 679,015.08-1,022,584.79-618,481.64

Finding the Fourth Proportional to 679,015.08, 1,022,584.79 and 618,481.64

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Solution

The fourth proportional to 679,015.08, 1,022,584.79 and 618,481.64 is: 931,422.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,015.08 : 1,022,584.79 = 618,481.64 : x
  2. Step 2: Convert to fraction form
    679,015.08/1,022,584.79 = 618,481.64/x
  3. Step 3: Cross multiply
    679,015.08x = 1,022,584.79 × 618,481.64
  4. Step 4: Simplify right side
    679,015.08x = 632,449,917,958.26
  5. Step 5: Solve for x
    x = 632,449,917,958.26/679,015.08
  6. Step 6: Final answer
    x = 931,422.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.