Home / 1,328,274.90-1,992,198.51-381,430.26

Finding the Fourth Proportional to 1,328,274.90, 1,992,198.51 and 381,430.26

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Solution

The fourth proportional to 1,328,274.90, 1,992,198.51 and 381,430.26 is: 572,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,274.90 : 1,992,198.51 = 381,430.26 : x
  2. Step 2: Convert to fraction form
    1,328,274.90/1,992,198.51 = 381,430.26/x
  3. Step 3: Cross multiply
    1,328,274.90x = 1,992,198.51 × 381,430.26
  4. Step 4: Simplify right side
    1,328,274.90x = 759,884,795,640.91
  5. Step 5: Solve for x
    x = 759,884,795,640.91/1,328,274.90
  6. Step 6: Final answer
    x = 572,083.98

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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.