Home / 780,010.95-1,170,016.43-691,364.55

Finding the Fourth Proportional to 780,010.95, 1,170,016.43 and 691,364.55

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Solution

The fourth proportional to 780,010.95, 1,170,016.43 and 691,364.55 is: 1,037,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,010.95 : 1,170,016.43 = 691,364.55 : x
  2. Step 2: Convert to fraction form
    780,010.95/1,170,016.43 = 691,364.55/x
  3. Step 3: Cross multiply
    780,010.95x = 1,170,016.43 × 691,364.55
  4. Step 4: Simplify right side
    780,010.95x = 808,907,879,162.73
  5. Step 5: Solve for x
    x = 808,907,879,162.73/780,010.95
  6. Step 6: Final answer
    x = 1,037,046.83

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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.