Home / 659,406.84-989,099.46-210,121.68

Finding the Fourth Proportional to 659,406.84, 989,099.46 and 210,121.68

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Solution

The fourth proportional to 659,406.84, 989,099.46 and 210,121.68 is: 315,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,406.84 : 989,099.46 = 210,121.68 : x
  2. Step 2: Convert to fraction form
    659,406.84/989,099.46 = 210,121.68/x
  3. Step 3: Cross multiply
    659,406.84x = 989,099.46 × 210,121.68
  4. Step 4: Simplify right side
    659,406.84x = 207,831,240,222.29
  5. Step 5: Solve for x
    x = 207,831,240,222.29/659,406.84
  6. Step 6: Final answer
    x = 315,179.08

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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.