Home / 1,326,229.85-1,989,732.97-427,653.52

Finding the Fourth Proportional to 1,326,229.85, 1,989,732.97 and 427,653.52

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Solution

The fourth proportional to 1,326,229.85, 1,989,732.97 and 427,653.52 is: 641,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,229.85 : 1,989,732.97 = 427,653.52 : x
  2. Step 2: Convert to fraction form
    1,326,229.85/1,989,732.97 = 427,653.52/x
  3. Step 3: Cross multiply
    1,326,229.85x = 1,989,732.97 × 427,653.52
  4. Step 4: Simplify right side
    1,326,229.85x = 850,916,304,040.79
  5. Step 5: Solve for x
    x = 850,916,304,040.79/1,326,229.85
  6. Step 6: Final answer
    x = 641,605.45

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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.