Home / 842,992.20-1,264,488.30-487,823.40

Finding the Fourth Proportional to 842,992.20, 1,264,488.30 and 487,823.40

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Solution

The fourth proportional to 842,992.20, 1,264,488.30 and 487,823.40 is: 731,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,992.20 : 1,264,488.30 = 487,823.40 : x
  2. Step 2: Convert to fraction form
    842,992.20/1,264,488.30 = 487,823.40/x
  3. Step 3: Cross multiply
    842,992.20x = 1,264,488.30 × 487,823.40
  4. Step 4: Simplify right side
    842,992.20x = 616,846,981,766.22
  5. Step 5: Solve for x
    x = 616,846,981,766.22/842,992.20
  6. Step 6: Final answer
    x = 731,735.10

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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.