Home / 1,686,609.70-2,530,745.60-788,113.56

Finding the Fourth Proportional to 1,686,609.70, 2,530,745.60 and 788,113.56

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Solution

The fourth proportional to 1,686,609.70, 2,530,745.60 and 788,113.56 is: 1,182,558.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,609.70 : 2,530,745.60 = 788,113.56 : x
  2. Step 2: Convert to fraction form
    1,686,609.70/2,530,745.60 = 788,113.56/x
  3. Step 3: Cross multiply
    1,686,609.70x = 2,530,745.60 × 788,113.56
  4. Step 4: Simplify right side
    1,686,609.70x = 1,994,514,924,270.34
  5. Step 5: Solve for x
    x = 1,994,514,924,270.34/1,686,609.70
  6. Step 6: Final answer
    x = 1,182,558.67

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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.