Home / 684,664.24-1,027,239.60-305,550.40

Finding the Fourth Proportional to 684,664.24, 1,027,239.60 and 305,550.40

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Solution

The fourth proportional to 684,664.24, 1,027,239.60 and 305,550.40 is: 458,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,664.24 : 1,027,239.60 = 305,550.40 : x
  2. Step 2: Convert to fraction form
    684,664.24/1,027,239.60 = 305,550.40/x
  3. Step 3: Cross multiply
    684,664.24x = 1,027,239.60 × 305,550.40
  4. Step 4: Simplify right side
    684,664.24x = 313,873,470,675.84
  5. Step 5: Solve for x
    x = 313,873,470,675.84/684,664.24
  6. Step 6: Final answer
    x = 458,434.15

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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.