Home / 999,666.72-1,379,540.48-540,781.19

Finding the Fourth Proportional to 999,666.72, 1,379,540.48 and 540,781.19

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Solution

The fourth proportional to 999,666.72, 1,379,540.48 and 540,781.19 is: 746,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,666.72 : 1,379,540.48 = 540,781.19 : x
  2. Step 2: Convert to fraction form
    999,666.72/1,379,540.48 = 540,781.19/x
  3. Step 3: Cross multiply
    999,666.72x = 1,379,540.48 × 540,781.19
  4. Step 4: Simplify right side
    999,666.72x = 746,029,548,801.05
  5. Step 5: Solve for x
    x = 746,029,548,801.05/999,666.72
  6. Step 6: Final answer
    x = 746,278.27

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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.