Home / 989,546.10-1,388,163.90-989,546.10

Finding the Fourth Proportional to 989,546.10, 1,388,163.90 and 989,546.10

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Solution

The fourth proportional to 989,546.10, 1,388,163.90 and 989,546.10 is: 1,388,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,546.10 : 1,388,163.90 = 989,546.10 : x
  2. Step 2: Convert to fraction form
    989,546.10/1,388,163.90 = 989,546.10/x
  3. Step 3: Cross multiply
    989,546.10x = 1,388,163.90 × 989,546.10
  4. Step 4: Simplify right side
    989,546.10x = 1,373,652,173,405.79
  5. Step 5: Solve for x
    x = 1,373,652,173,405.79/989,546.10
  6. Step 6: Final answer
    x = 1,388,163.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.