Home / 529,831.82-731,145.65-300,404.54

Finding the Fourth Proportional to 529,831.82, 731,145.65 and 300,404.54

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Solution

The fourth proportional to 529,831.82, 731,145.65 and 300,404.54 is: 414,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,831.82 : 731,145.65 = 300,404.54 : x
  2. Step 2: Convert to fraction form
    529,831.82/731,145.65 = 300,404.54/x
  3. Step 3: Cross multiply
    529,831.82x = 731,145.65 × 300,404.54
  4. Step 4: Simplify right side
    529,831.82x = 219,639,467,503.50
  5. Step 5: Solve for x
    x = 219,639,467,503.50/529,831.82
  6. Step 6: Final answer
    x = 414,545.64

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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.