Home / 407,845.89-611,831.07-208,057.26

Finding the Fourth Proportional to 407,845.89, 611,831.07 and 208,057.26

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Solution

The fourth proportional to 407,845.89, 611,831.07 and 208,057.26 is: 312,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,845.89 : 611,831.07 = 208,057.26 : x
  2. Step 2: Convert to fraction form
    407,845.89/611,831.07 = 208,057.26/x
  3. Step 3: Cross multiply
    407,845.89x = 611,831.07 × 208,057.26
  4. Step 4: Simplify right side
    407,845.89x = 127,295,898,301.44
  5. Step 5: Solve for x
    x = 127,295,898,301.44/407,845.89
  6. Step 6: Final answer
    x = 312,117.64

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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.