Home / 2,781,571.89-3,837,346.45-1,678,387.96

Finding the Fourth Proportional to 2,781,571.89, 3,837,346.45 and 1,678,387.96

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Solution

The fourth proportional to 2,781,571.89, 3,837,346.45 and 1,678,387.96 is: 2,315,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,571.89 : 3,837,346.45 = 1,678,387.96 : x
  2. Step 2: Convert to fraction form
    2,781,571.89/3,837,346.45 = 1,678,387.96/x
  3. Step 3: Cross multiply
    2,781,571.89x = 3,837,346.45 × 1,678,387.96
  4. Step 4: Simplify right side
    2,781,571.89x = 6,440,556,089,622.11
  5. Step 5: Solve for x
    x = 6,440,556,089,622.11/2,781,571.89
  6. Step 6: Final answer
    x = 2,315,437.58

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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.