Home / 780,974.83-1,171,856.57-354,238.68

Finding the Fourth Proportional to 780,974.83, 1,171,856.57 and 354,238.68

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Solution

The fourth proportional to 780,974.83, 1,171,856.57 and 354,238.68 is: 531,536.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,974.83 : 1,171,856.57 = 354,238.68 : x
  2. Step 2: Convert to fraction form
    780,974.83/1,171,856.57 = 354,238.68/x
  3. Step 3: Cross multiply
    780,974.83x = 1,171,856.57 × 354,238.68
  4. Step 4: Simplify right side
    780,974.83x = 415,116,927,129.40
  5. Step 5: Solve for x
    x = 415,116,927,129.40/780,974.83
  6. Step 6: Final answer
    x = 531,536.88

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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.