Home / 721,502.36-1,082,222.49-189,011.60

Finding the Fourth Proportional to 721,502.36, 1,082,222.49 and 189,011.60

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Solution

The fourth proportional to 721,502.36, 1,082,222.49 and 189,011.60 is: 283,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,502.36 : 1,082,222.49 = 189,011.60 : x
  2. Step 2: Convert to fraction form
    721,502.36/1,082,222.49 = 189,011.60/x
  3. Step 3: Cross multiply
    721,502.36x = 1,082,222.49 × 189,011.60
  4. Step 4: Simplify right side
    721,502.36x = 204,552,604,390.88
  5. Step 5: Solve for x
    x = 204,552,604,390.88/721,502.36
  6. Step 6: Final answer
    x = 283,509.27

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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.