Home / 655,839.06-983,896.83-212,572.50

Finding the Fourth Proportional to 655,839.06, 983,896.83 and 212,572.50

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Solution

The fourth proportional to 655,839.06, 983,896.83 and 212,572.50 is: 318,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,839.06 : 983,896.83 = 212,572.50 : x
  2. Step 2: Convert to fraction form
    655,839.06/983,896.83 = 212,572.50/x
  3. Step 3: Cross multiply
    655,839.06x = 983,896.83 × 212,572.50
  4. Step 4: Simplify right side
    655,839.06x = 209,149,408,895.18
  5. Step 5: Solve for x
    x = 209,149,408,895.18/655,839.06
  6. Step 6: Final answer
    x = 318,903.56

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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.