Home / 1,326,233.61-1,989,738.60-427,657.28

Finding the Fourth Proportional to 1,326,233.61, 1,989,738.60 and 427,657.28

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Solution

The fourth proportional to 1,326,233.61, 1,989,738.60 and 427,657.28 is: 641,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,233.61 : 1,989,738.60 = 427,657.28 : x
  2. Step 2: Convert to fraction form
    1,326,233.61/1,989,738.60 = 427,657.28/x
  3. Step 3: Cross multiply
    1,326,233.61x = 1,989,738.60 × 427,657.28
  4. Step 4: Simplify right side
    1,326,233.61x = 850,926,187,638.32
  5. Step 5: Solve for x
    x = 850,926,187,638.32/1,326,233.61
  6. Step 6: Final answer
    x = 641,611.09

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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.