Home / 780,538.45-1,170,718.23-204,217.39

Finding the Fourth Proportional to 780,538.45, 1,170,718.23 and 204,217.39

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Solution

The fourth proportional to 780,538.45, 1,170,718.23 and 204,217.39 is: 306,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,538.45 : 1,170,718.23 = 204,217.39 : x
  2. Step 2: Convert to fraction form
    780,538.45/1,170,718.23 = 204,217.39/x
  3. Step 3: Cross multiply
    780,538.45x = 1,170,718.23 × 204,217.39
  4. Step 4: Simplify right side
    780,538.45x = 239,081,021,356.02
  5. Step 5: Solve for x
    x = 239,081,021,356.02/780,538.45
  6. Step 6: Final answer
    x = 306,302.68

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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.