Home / 819,658.20-1,229,487.30-551,969.40

Finding the Fourth Proportional to 819,658.20, 1,229,487.30 and 551,969.40

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Solution

The fourth proportional to 819,658.20, 1,229,487.30 and 551,969.40 is: 827,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,658.20 : 1,229,487.30 = 551,969.40 : x
  2. Step 2: Convert to fraction form
    819,658.20/1,229,487.30 = 551,969.40/x
  3. Step 3: Cross multiply
    819,658.20x = 1,229,487.30 × 551,969.40
  4. Step 4: Simplify right side
    819,658.20x = 678,639,367,288.62
  5. Step 5: Solve for x
    x = 678,639,367,288.62/819,658.20
  6. Step 6: Final answer
    x = 827,954.10

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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.