Home / 672,783.77-1,009,003.70-199,358.42

Finding the Fourth Proportional to 672,783.77, 1,009,003.70 and 199,358.42

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Solution

The fourth proportional to 672,783.77, 1,009,003.70 and 199,358.42 is: 298,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,783.77 : 1,009,003.70 = 199,358.42 : x
  2. Step 2: Convert to fraction form
    672,783.77/1,009,003.70 = 199,358.42/x
  3. Step 3: Cross multiply
    672,783.77x = 1,009,003.70 × 199,358.42
  4. Step 4: Simplify right side
    672,783.77x = 201,153,378,859.53
  5. Step 5: Solve for x
    x = 201,153,378,859.53/672,783.77
  6. Step 6: Final answer
    x = 298,986.67

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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.