Home / 529,831.07-731,144.61-300,403.79

Finding the Fourth Proportional to 529,831.07, 731,144.61 and 300,403.79

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Solution

The fourth proportional to 529,831.07, 731,144.61 and 300,403.79 is: 414,544.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,831.07 : 731,144.61 = 300,403.79 : x
  2. Step 2: Convert to fraction form
    529,831.07/731,144.61 = 300,403.79/x
  3. Step 3: Cross multiply
    529,831.07x = 731,144.61 × 300,403.79
  4. Step 4: Simplify right side
    529,831.07x = 219,638,608,226.35
  5. Step 5: Solve for x
    x = 219,638,608,226.35/529,831.07
  6. Step 6: Final answer
    x = 414,544.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.