Home / 2,638,780.20-3,641,907.42-1,672,000.45

Finding the Fourth Proportional to 2,638,780.20, 3,641,907.42 and 1,672,000.45

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Solution

The fourth proportional to 2,638,780.20, 3,641,907.42 and 1,672,000.45 is: 2,307,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,780.20 : 3,641,907.42 = 1,672,000.45 : x
  2. Step 2: Convert to fraction form
    2,638,780.20/3,641,907.42 = 1,672,000.45/x
  3. Step 3: Cross multiply
    2,638,780.20x = 3,641,907.42 × 1,672,000.45
  4. Step 4: Simplify right side
    2,638,780.20x = 6,089,270,835,993.57
  5. Step 5: Solve for x
    x = 6,089,270,835,993.57/2,638,780.20
  6. Step 6: Final answer
    x = 2,307,608.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.