Home / 678,820.37-1,018,361.84-258,063.44

Finding the Fourth Proportional to 678,820.37, 1,018,361.84 and 258,063.44

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Solution

The fourth proportional to 678,820.37, 1,018,361.84 and 258,063.44 is: 387,145.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,820.37 : 1,018,361.84 = 258,063.44 : x
  2. Step 2: Convert to fraction form
    678,820.37/1,018,361.84 = 258,063.44/x
  3. Step 3: Cross multiply
    678,820.37x = 1,018,361.84 × 258,063.44
  4. Step 4: Simplify right side
    678,820.37x = 262,801,953,213.00
  5. Step 5: Solve for x
    x = 262,801,953,213.00/678,820.37
  6. Step 6: Final answer
    x = 387,145.06

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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.