Home / 1,300,860.54-1,951,290.81-857,524.86

Finding the Fourth Proportional to 1,300,860.54, 1,951,290.81 and 857,524.86

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Solution

The fourth proportional to 1,300,860.54, 1,951,290.81 and 857,524.86 is: 1,286,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,860.54 : 1,951,290.81 = 857,524.86 : x
  2. Step 2: Convert to fraction form
    1,300,860.54/1,951,290.81 = 857,524.86/x
  3. Step 3: Cross multiply
    1,300,860.54x = 1,951,290.81 × 857,524.86
  4. Step 4: Simplify right side
    1,300,860.54x = 1,673,280,378,664.54
  5. Step 5: Solve for x
    x = 1,673,280,378,664.54/1,300,860.54
  6. Step 6: Final answer
    x = 1,286,287.29

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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.