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Finding the Fourth Proportional to 544,612.80, 816,044.40 and 455,383.20

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Solution

The fourth proportional to 544,612.80, 816,044.40 and 455,383.20 is: 682,343.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,612.80 : 816,044.40 = 455,383.20 : x
  2. Step 2: Convert to fraction form
    544,612.80/816,044.40 = 455,383.20/x
  3. Step 3: Cross multiply
    544,612.80x = 816,044.40 × 455,383.20
  4. Step 4: Simplify right side
    544,612.80x = 371,612,910,214.08
  5. Step 5: Solve for x
    x = 371,612,910,214.08/544,612.80
  6. Step 6: Final answer
    x = 682,343.33

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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.