Home / 419,738.80-579,222.64-228,748.08

Finding the Fourth Proportional to 419,738.80, 579,222.64 and 228,748.08

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Solution

The fourth proportional to 419,738.80, 579,222.64 and 228,748.08 is: 315,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,738.80 : 579,222.64 = 228,748.08 : x
  2. Step 2: Convert to fraction form
    419,738.80/579,222.64 = 228,748.08/x
  3. Step 3: Cross multiply
    419,738.80x = 579,222.64 × 228,748.08
  4. Step 4: Simplify right side
    419,738.80x = 132,496,066,792.53
  5. Step 5: Solve for x
    x = 132,496,066,792.53/419,738.80
  6. Step 6: Final answer
    x = 315,663.14

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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.