Home / 778,723.20-1,167,890.40-298,846.80

Finding the Fourth Proportional to 778,723.20, 1,167,890.40 and 298,846.80

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Solution

The fourth proportional to 778,723.20, 1,167,890.40 and 298,846.80 is: 448,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,723.20 : 1,167,890.40 = 298,846.80 : x
  2. Step 2: Convert to fraction form
    778,723.20/1,167,890.40 = 298,846.80/x
  3. Step 3: Cross multiply
    778,723.20x = 1,167,890.40 × 298,846.80
  4. Step 4: Simplify right side
    778,723.20x = 349,020,308,790.72
  5. Step 5: Solve for x
    x = 349,020,308,790.72/778,723.20
  6. Step 6: Final answer
    x = 448,195.60

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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.