Home / 759,729.35-1,139,662.67-219,977.75

Finding the Fourth Proportional to 759,729.35, 1,139,662.67 and 219,977.75

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Solution

The fourth proportional to 759,729.35, 1,139,662.67 and 219,977.75 is: 329,986.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,729.35 : 1,139,662.67 = 219,977.75 : x
  2. Step 2: Convert to fraction form
    759,729.35/1,139,662.67 = 219,977.75/x
  3. Step 3: Cross multiply
    759,729.35x = 1,139,662.67 × 219,977.75
  4. Step 4: Simplify right side
    759,729.35x = 250,700,429,905.59
  5. Step 5: Solve for x
    x = 250,700,429,905.59/759,729.35
  6. Step 6: Final answer
    x = 329,986.50

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1.5x scale

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.