Home / 780,109.72-1,170,164.58-274,551.64

Finding the Fourth Proportional to 780,109.72, 1,170,164.58 and 274,551.64

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Solution

The fourth proportional to 780,109.72, 1,170,164.58 and 274,551.64 is: 411,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,109.72 : 1,170,164.58 = 274,551.64 : x
  2. Step 2: Convert to fraction form
    780,109.72/1,170,164.58 = 274,551.64/x
  3. Step 3: Cross multiply
    780,109.72x = 1,170,164.58 × 274,551.64
  4. Step 4: Simplify right side
    780,109.72x = 321,270,604,508.91
  5. Step 5: Solve for x
    x = 321,270,604,508.91/780,109.72
  6. Step 6: Final answer
    x = 411,827.46

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Similar ratio
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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.