Home / 668,833.54-1,003,578.36-313,876.42

Finding the Fourth Proportional to 668,833.54, 1,003,578.36 and 313,876.42

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Solution

The fourth proportional to 668,833.54, 1,003,578.36 and 313,876.42 is: 470,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,833.54 : 1,003,578.36 = 313,876.42 : x
  2. Step 2: Convert to fraction form
    668,833.54/1,003,578.36 = 313,876.42/x
  3. Step 3: Cross multiply
    668,833.54x = 1,003,578.36 × 313,876.42
  4. Step 4: Simplify right side
    668,833.54x = 314,999,582,826.27
  5. Step 5: Solve for x
    x = 314,999,582,826.27/668,833.54
  6. Step 6: Final answer
    x = 470,968.58

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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.