Home / 2,003,765.40-2,999,743.20-1,330,606.80

Finding the Fourth Proportional to 2,003,765.40, 2,999,743.20 and 1,330,606.80

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Solution

The fourth proportional to 2,003,765.40, 2,999,743.20 and 1,330,606.80 is: 1,991,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003,765.40 : 2,999,743.20 = 1,330,606.80 : x
  2. Step 2: Convert to fraction form
    2,003,765.40/2,999,743.20 = 1,330,606.80/x
  3. Step 3: Cross multiply
    2,003,765.40x = 2,999,743.20 × 1,330,606.80
  4. Step 4: Simplify right side
    2,003,765.40x = 3,991,478,700,173.76
  5. Step 5: Solve for x
    x = 3,991,478,700,173.76/2,003,765.40
  6. Step 6: Final answer
    x = 1,991,989.03

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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.