Home / 668,834.37-1,003,400.24-313,659.09

Finding the Fourth Proportional to 668,834.37, 1,003,400.24 and 313,659.09

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Solution

The fourth proportional to 668,834.37, 1,003,400.24 and 313,659.09 is: 470,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,834.37 : 1,003,400.24 = 313,659.09 : x
  2. Step 2: Convert to fraction form
    668,834.37/1,003,400.24 = 313,659.09/x
  3. Step 3: Cross multiply
    668,834.37x = 1,003,400.24 × 313,659.09
  4. Step 4: Simplify right side
    668,834.37x = 314,725,604,615.89
  5. Step 5: Solve for x
    x = 314,725,604,615.89/668,834.37
  6. Step 6: Final answer
    x = 470,558.36

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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.