Home / 856,071.77-1,284,192.63-316,469.48

Finding the Fourth Proportional to 856,071.77, 1,284,192.63 and 316,469.48

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Solution

The fourth proportional to 856,071.77, 1,284,192.63 and 316,469.48 is: 474,735.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,071.77 : 1,284,192.63 = 316,469.48 : x
  2. Step 2: Convert to fraction form
    856,071.77/1,284,192.63 = 316,469.48/x
  3. Step 3: Cross multiply
    856,071.77x = 1,284,192.63 × 316,469.48
  4. Step 4: Simplify right side
    856,071.77x = 406,407,767,414.97
  5. Step 5: Solve for x
    x = 406,407,767,414.97/856,071.77
  6. Step 6: Final answer
    x = 474,735.63

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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.