Home / 780,371.79-1,170,651.45-274,828.32

Finding the Fourth Proportional to 780,371.79, 1,170,651.45 and 274,828.32

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Solution

The fourth proportional to 780,371.79, 1,170,651.45 and 274,828.32 is: 412,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,371.79 : 1,170,651.45 = 274,828.32 : x
  2. Step 2: Convert to fraction form
    780,371.79/1,170,651.45 = 274,828.32/x
  3. Step 3: Cross multiply
    780,371.79x = 1,170,651.45 × 274,828.32
  4. Step 4: Simplify right side
    780,371.79x = 321,728,171,309.06
  5. Step 5: Solve for x
    x = 321,728,171,309.06/780,371.79
  6. Step 6: Final answer
    x = 412,275.50

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1.5x scale

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.