Home / 780,174.72-1,170,262.08-274,616.64

Finding the Fourth Proportional to 780,174.72, 1,170,262.08 and 274,616.64

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Solution

The fourth proportional to 780,174.72, 1,170,262.08 and 274,616.64 is: 411,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,174.72 : 1,170,262.08 = 274,616.64 : x
  2. Step 2: Convert to fraction form
    780,174.72/1,170,262.08 = 274,616.64/x
  3. Step 3: Cross multiply
    780,174.72x = 1,170,262.08 × 274,616.64
  4. Step 4: Simplify right side
    780,174.72x = 321,373,440,329.01
  5. Step 5: Solve for x
    x = 321,373,440,329.01/780,174.72
  6. Step 6: Final answer
    x = 411,924.96

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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.