Home / 1,392,872-2,089,461.60-446,020.16

Finding the Fourth Proportional to 1,392,872, 2,089,461.60 and 446,020.16

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Solution

The fourth proportional to 1,392,872, 2,089,461.60 and 446,020.16 is: 669,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,872 : 2,089,461.60 = 446,020.16 : x
  2. Step 2: Convert to fraction form
    1,392,872/2,089,461.60 = 446,020.16/x
  3. Step 3: Cross multiply
    1,392,872x = 2,089,461.60 × 446,020.16
  4. Step 4: Simplify right side
    1,392,872x = 931,941,997,145.86
  5. Step 5: Solve for x
    x = 931,941,997,145.86/1,392,872
  6. Step 6: Final answer
    x = 669,079.43

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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.