Home / 384,111.36-576,913.92-313,086.09

Finding the Fourth Proportional to 384,111.36, 576,913.92 and 313,086.09

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Solution

The fourth proportional to 384,111.36, 576,913.92 and 313,086.09 is: 470,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,111.36 : 576,913.92 = 313,086.09 : x
  2. Step 2: Convert to fraction form
    384,111.36/576,913.92 = 313,086.09/x
  3. Step 3: Cross multiply
    384,111.36x = 576,913.92 × 313,086.09
  4. Step 4: Simplify right side
    384,111.36x = 180,623,723,479.37
  5. Step 5: Solve for x
    x = 180,623,723,479.37/384,111.36
  6. Step 6: Final answer
    x = 470,237.91

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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.