Home / 655,845.06-983,905.83-212,578.50

Finding the Fourth Proportional to 655,845.06, 983,905.83 and 212,578.50

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Solution

The fourth proportional to 655,845.06, 983,905.83 and 212,578.50 is: 318,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,845.06 : 983,905.83 = 212,578.50 : x
  2. Step 2: Convert to fraction form
    655,845.06/983,905.83 = 212,578.50/x
  3. Step 3: Cross multiply
    655,845.06x = 983,905.83 × 212,578.50
  4. Step 4: Simplify right side
    655,845.06x = 209,157,225,482.66
  5. Step 5: Solve for x
    x = 209,157,225,482.66/655,845.06
  6. Step 6: Final answer
    x = 318,912.56

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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.