Home / 772,121.30-1,159,510.56-738,906.23

Finding the Fourth Proportional to 772,121.30, 1,159,510.56 and 738,906.23

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Solution

The fourth proportional to 772,121.30, 1,159,510.56 and 738,906.23 is: 1,109,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,121.30 : 1,159,510.56 = 738,906.23 : x
  2. Step 2: Convert to fraction form
    772,121.30/1,159,510.56 = 738,906.23/x
  3. Step 3: Cross multiply
    772,121.30x = 1,159,510.56 × 738,906.23
  4. Step 4: Simplify right side
    772,121.30x = 856,769,576,534.79
  5. Step 5: Solve for x
    x = 856,769,576,534.79/772,121.30
  6. Step 6: Final answer
    x = 1,109,630.80

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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.