Home / 380,180.53-523,913.97-289,392.67

Finding the Fourth Proportional to 380,180.53, 523,913.97 and 289,392.67

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Solution

The fourth proportional to 380,180.53, 523,913.97 and 289,392.67 is: 398,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,180.53 : 523,913.97 = 289,392.67 : x
  2. Step 2: Convert to fraction form
    380,180.53/523,913.97 = 289,392.67/x
  3. Step 3: Cross multiply
    380,180.53x = 523,913.97 × 289,392.67
  4. Step 4: Simplify right side
    380,180.53x = 151,616,862,628.60
  5. Step 5: Solve for x
    x = 151,616,862,628.60/380,180.53
  6. Step 6: Final answer
    x = 398,802.28

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1.5x scale

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.