Home / 525,831.60-789,136.20-348,279.60

Finding the Fourth Proportional to 525,831.60, 789,136.20 and 348,279.60

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Solution

The fourth proportional to 525,831.60, 789,136.20 and 348,279.60 is: 522,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,831.60 : 789,136.20 = 348,279.60 : x
  2. Step 2: Convert to fraction form
    525,831.60/789,136.20 = 348,279.60/x
  3. Step 3: Cross multiply
    525,831.60x = 789,136.20 × 348,279.60
  4. Step 4: Simplify right side
    525,831.60x = 274,840,040,081.52
  5. Step 5: Solve for x
    x = 274,840,040,081.52/525,831.60
  6. Step 6: Final answer
    x = 522,676.92

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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.