Home / 1,330,749.40-1,997,376.90-700,115.80

Finding the Fourth Proportional to 1,330,749.40, 1,997,376.90 and 700,115.80

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Solution

The fourth proportional to 1,330,749.40, 1,997,376.90 and 700,115.80 is: 1,050,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,749.40 : 1,997,376.90 = 700,115.80 : x
  2. Step 2: Convert to fraction form
    1,330,749.40/1,997,376.90 = 700,115.80/x
  3. Step 3: Cross multiply
    1,330,749.40x = 1,997,376.90 × 700,115.80
  4. Step 4: Simplify right side
    1,330,749.40x = 1,398,395,126,245.02
  5. Step 5: Solve for x
    x = 1,398,395,126,245.02/1,330,749.40
  6. Step 6: Final answer
    x = 1,050,832.81

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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.