Home / 1,326,233.36-1,989,738.23-427,657.03

Finding the Fourth Proportional to 1,326,233.36, 1,989,738.23 and 427,657.03

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Solution

The fourth proportional to 1,326,233.36, 1,989,738.23 and 427,657.03 is: 641,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,233.36 : 1,989,738.23 = 427,657.03 : x
  2. Step 2: Convert to fraction form
    1,326,233.36/1,989,738.23 = 427,657.03/x
  3. Step 3: Cross multiply
    1,326,233.36x = 1,989,738.23 × 427,657.03
  4. Step 4: Simplify right side
    1,326,233.36x = 850,925,541,919.26
  5. Step 5: Solve for x
    x = 850,925,541,919.26/1,326,233.36
  6. Step 6: Final answer
    x = 641,610.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.