Home / 727,804.80-1,091,707.20-408,940.20

Finding the Fourth Proportional to 727,804.80, 1,091,707.20 and 408,940.20

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Solution

The fourth proportional to 727,804.80, 1,091,707.20 and 408,940.20 is: 613,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,804.80 : 1,091,707.20 = 408,940.20 : x
  2. Step 2: Convert to fraction form
    727,804.80/1,091,707.20 = 408,940.20/x
  3. Step 3: Cross multiply
    727,804.80x = 1,091,707.20 × 408,940.20
  4. Step 4: Simplify right side
    727,804.80x = 446,442,960,709.44
  5. Step 5: Solve for x
    x = 446,442,960,709.44/727,804.80
  6. Step 6: Final answer
    x = 613,410.30

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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.