Home / 689,205.45-1,033,384.80-267,990.33

Finding the Fourth Proportional to 689,205.45, 1,033,384.80 and 267,990.33

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Solution

The fourth proportional to 689,205.45, 1,033,384.80 and 267,990.33 is: 401,820.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,205.45 : 1,033,384.80 = 267,990.33 : x
  2. Step 2: Convert to fraction form
    689,205.45/1,033,384.80 = 267,990.33/x
  3. Step 3: Cross multiply
    689,205.45x = 1,033,384.80 × 267,990.33
  4. Step 4: Simplify right side
    689,205.45x = 276,937,133,568.98
  5. Step 5: Solve for x
    x = 276,937,133,568.98/689,205.45
  6. Step 6: Final answer
    x = 401,820.87

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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.