Home / 1,392,870-2,089,458.60-446,018.16

Finding the Fourth Proportional to 1,392,870, 2,089,458.60 and 446,018.16

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Solution

The fourth proportional to 1,392,870, 2,089,458.60 and 446,018.16 is: 669,076.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,870 : 2,089,458.60 = 446,018.16 : x
  2. Step 2: Convert to fraction form
    1,392,870/2,089,458.60 = 446,018.16/x
  3. Step 3: Cross multiply
    1,392,870x = 2,089,458.60 × 446,018.16
  4. Step 4: Simplify right side
    1,392,870x = 931,936,480,168.18
  5. Step 5: Solve for x
    x = 931,936,480,168.18/1,392,870
  6. Step 6: Final answer
    x = 669,076.43

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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.