Home / 659,396.70-989,084.32-210,111.50

Finding the Fourth Proportional to 659,396.70, 989,084.32 and 210,111.50

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Solution

The fourth proportional to 659,396.70, 989,084.32 and 210,111.50 is: 315,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,396.70 : 989,084.32 = 210,111.50 : x
  2. Step 2: Convert to fraction form
    659,396.70/989,084.32 = 210,111.50/x
  3. Step 3: Cross multiply
    659,396.70x = 989,084.32 × 210,111.50
  4. Step 4: Simplify right side
    659,396.70x = 207,817,992,049.11
  5. Step 5: Solve for x
    x = 207,817,992,049.11/659,396.70
  6. Step 6: Final answer
    x = 315,163.83

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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.