Home / 2,131,430.80-3,194,424.60-867,830.80

Finding the Fourth Proportional to 2,131,430.80, 3,194,424.60 and 867,830.80

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Solution

The fourth proportional to 2,131,430.80, 3,194,424.60 and 867,830.80 is: 1,300,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,430.80 : 3,194,424.60 = 867,830.80 : x
  2. Step 2: Convert to fraction form
    2,131,430.80/3,194,424.60 = 867,830.80/x
  3. Step 3: Cross multiply
    2,131,430.80x = 3,194,424.60 × 867,830.80
  4. Step 4: Simplify right side
    2,131,430.80x = 2,772,220,056,157.68
  5. Step 5: Solve for x
    x = 2,772,220,056,157.68/2,131,430.80
  6. Step 6: Final answer
    x = 1,300,638.08

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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.