Home / 726,062.19-1,089,145.31-193,580.43

Finding the Fourth Proportional to 726,062.19, 1,089,145.31 and 193,580.43

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Solution

The fourth proportional to 726,062.19, 1,089,145.31 and 193,580.43 is: 290,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,062.19 : 1,089,145.31 = 193,580.43 : x
  2. Step 2: Convert to fraction form
    726,062.19/1,089,145.31 = 193,580.43/x
  3. Step 3: Cross multiply
    726,062.19x = 1,089,145.31 × 193,580.43
  4. Step 4: Simplify right side
    726,062.19x = 210,837,216,474.38
  5. Step 5: Solve for x
    x = 210,837,216,474.38/726,062.19
  6. Step 6: Final answer
    x = 290,384.51

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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.