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Finding the Fourth Proportional to 554,455.80, 830,301.30 and 443,863.80

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Solution

The fourth proportional to 554,455.80, 830,301.30 and 443,863.80 is: 664,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,455.80 : 830,301.30 = 443,863.80 : x
  2. Step 2: Convert to fraction form
    554,455.80/830,301.30 = 443,863.80/x
  3. Step 3: Cross multiply
    554,455.80x = 830,301.30 × 443,863.80
  4. Step 4: Simplify right side
    554,455.80x = 368,540,690,162.94
  5. Step 5: Solve for x
    x = 368,540,690,162.94/554,455.80
  6. Step 6: Final answer
    x = 664,689.03

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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.