Home / 1,240,015.82-1,860,141.38-481,915.87

Finding the Fourth Proportional to 1,240,015.82, 1,860,141.38 and 481,915.87

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Solution

The fourth proportional to 1,240,015.82, 1,860,141.38 and 481,915.87 is: 722,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,015.82 : 1,860,141.38 = 481,915.87 : x
  2. Step 2: Convert to fraction form
    1,240,015.82/1,860,141.38 = 481,915.87/x
  3. Step 3: Cross multiply
    1,240,015.82x = 1,860,141.38 × 481,915.87
  4. Step 4: Simplify right side
    1,240,015.82x = 896,431,644,405.77
  5. Step 5: Solve for x
    x = 896,431,644,405.77/1,240,015.82
  6. Step 6: Final answer
    x = 722,919.53

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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.