Home / 1,293,198.76-1,784,570.34-720,209.32

Finding the Fourth Proportional to 1,293,198.76, 1,784,570.34 and 720,209.32

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Solution

The fourth proportional to 1,293,198.76, 1,784,570.34 and 720,209.32 is: 993,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,198.76 : 1,784,570.34 = 720,209.32 : x
  2. Step 2: Convert to fraction form
    1,293,198.76/1,784,570.34 = 720,209.32/x
  3. Step 3: Cross multiply
    1,293,198.76x = 1,784,570.34 × 720,209.32
  4. Step 4: Simplify right side
    1,293,198.76x = 1,285,264,191,063.57
  5. Step 5: Solve for x
    x = 1,285,264,191,063.57/1,293,198.76
  6. Step 6: Final answer
    x = 993,864.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.