Home / 809,731.20-1,214,596.80-544,310.40

Finding the Fourth Proportional to 809,731.20, 1,214,596.80 and 544,310.40

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Solution

The fourth proportional to 809,731.20, 1,214,596.80 and 544,310.40 is: 816,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,731.20 : 1,214,596.80 = 544,310.40 : x
  2. Step 2: Convert to fraction form
    809,731.20/1,214,596.80 = 544,310.40/x
  3. Step 3: Cross multiply
    809,731.20x = 1,214,596.80 × 544,310.40
  4. Step 4: Simplify right side
    809,731.20x = 661,117,670,046.72
  5. Step 5: Solve for x
    x = 661,117,670,046.72/809,731.20
  6. Step 6: Final answer
    x = 816,465.60

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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.