Home / 759,728.85-1,139,661.92-219,977.25

Finding the Fourth Proportional to 759,728.85, 1,139,661.92 and 219,977.25

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Solution

The fourth proportional to 759,728.85, 1,139,661.92 and 219,977.25 is: 329,985.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,728.85 : 1,139,661.92 = 219,977.25 : x
  2. Step 2: Convert to fraction form
    759,728.85/1,139,661.92 = 219,977.25/x
  3. Step 3: Cross multiply
    759,728.85x = 1,139,661.92 × 219,977.25
  4. Step 4: Simplify right side
    759,728.85x = 250,699,695,091.32
  5. Step 5: Solve for x
    x = 250,699,695,091.32/759,728.85
  6. Step 6: Final answer
    x = 329,985.75

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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.