Home / 479,778.62-719,811.76-142,831.04

Finding the Fourth Proportional to 479,778.62, 719,811.76 and 142,831.04

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Solution

The fourth proportional to 479,778.62, 719,811.76 and 142,831.04 is: 214,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,778.62 : 719,811.76 = 142,831.04 : x
  2. Step 2: Convert to fraction form
    479,778.62/719,811.76 = 142,831.04/x
  3. Step 3: Cross multiply
    479,778.62x = 719,811.76 × 142,831.04
  4. Step 4: Simplify right side
    479,778.62x = 102,811,462,285.03
  5. Step 5: Solve for x
    x = 102,811,462,285.03/479,778.62
  6. Step 6: Final answer
    x = 214,289.38

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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.