Home / 818,650.16-1,228,106.46-345,405.23

Finding the Fourth Proportional to 818,650.16, 1,228,106.46 and 345,405.23

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Solution

The fourth proportional to 818,650.16, 1,228,106.46 and 345,405.23 is: 518,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,650.16 : 1,228,106.46 = 345,405.23 : x
  2. Step 2: Convert to fraction form
    818,650.16/1,228,106.46 = 345,405.23/x
  3. Step 3: Cross multiply
    818,650.16x = 1,228,106.46 × 345,405.23
  4. Step 4: Simplify right side
    818,650.16x = 424,194,388,140.25
  5. Step 5: Solve for x
    x = 424,194,388,140.25/818,650.16
  6. Step 6: Final answer
    x = 518,163.21

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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.