Home / 1,089,550-1,634,333.21-379,576.90

Finding the Fourth Proportional to 1,089,550, 1,634,333.21 and 379,576.90

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Solution

The fourth proportional to 1,089,550, 1,634,333.21 and 379,576.90 is: 569,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,550 : 1,634,333.21 = 379,576.90 : x
  2. Step 2: Convert to fraction form
    1,089,550/1,634,333.21 = 379,576.90/x
  3. Step 3: Cross multiply
    1,089,550x = 1,634,333.21 × 379,576.90
  4. Step 4: Simplify right side
    1,089,550x = 620,355,133,418.85
  5. Step 5: Solve for x
    x = 620,355,133,418.85/1,089,550
  6. Step 6: Final answer
    x = 569,368.21

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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.