Home / 1,326,043.12-1,829,939.72-722,431.12

Finding the Fourth Proportional to 1,326,043.12, 1,829,939.72 and 722,431.12

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Solution

The fourth proportional to 1,326,043.12, 1,829,939.72 and 722,431.12 is: 996,955.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,043.12 : 1,829,939.72 = 722,431.12 : x
  2. Step 2: Convert to fraction form
    1,326,043.12/1,829,939.72 = 722,431.12/x
  3. Step 3: Cross multiply
    1,326,043.12x = 1,829,939.72 × 722,431.12
  4. Step 4: Simplify right side
    1,326,043.12x = 1,322,005,401,452.09
  5. Step 5: Solve for x
    x = 1,322,005,401,452.09/1,326,043.12
  6. Step 6: Final answer
    x = 996,955.06

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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.