Home / 1,372,280.82-1,893,758.65-760,443.80

Finding the Fourth Proportional to 1,372,280.82, 1,893,758.65 and 760,443.80

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Solution

The fourth proportional to 1,372,280.82, 1,893,758.65 and 760,443.80 is: 1,049,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,280.82 : 1,893,758.65 = 760,443.80 : x
  2. Step 2: Convert to fraction form
    1,372,280.82/1,893,758.65 = 760,443.80/x
  3. Step 3: Cross multiply
    1,372,280.82x = 1,893,758.65 × 760,443.80
  4. Step 4: Simplify right side
    1,372,280.82x = 1,440,097,020,286.65
  5. Step 5: Solve for x
    x = 1,440,097,020,286.65/1,372,280.82
  6. Step 6: Final answer
    x = 1,049,418.61

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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.