Home / 672,814.60-1,009,221.90-273,322.60

Finding the Fourth Proportional to 672,814.60, 1,009,221.90 and 273,322.60

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Solution

The fourth proportional to 672,814.60, 1,009,221.90 and 273,322.60 is: 409,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,814.60 : 1,009,221.90 = 273,322.60 : x
  2. Step 2: Convert to fraction form
    672,814.60/1,009,221.90 = 273,322.60/x
  3. Step 3: Cross multiply
    672,814.60x = 1,009,221.90 × 273,322.60
  4. Step 4: Simplify right side
    672,814.60x = 275,843,153,684.94
  5. Step 5: Solve for x
    x = 275,843,153,684.94/672,814.60
  6. Step 6: Final answer
    x = 409,983.90

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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.