Home / 419,243.46-578,555.10-228,255.18

Finding the Fourth Proportional to 419,243.46, 578,555.10 and 228,255.18

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Solution

The fourth proportional to 419,243.46, 578,555.10 and 228,255.18 is: 314,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,243.46 : 578,555.10 = 228,255.18 : x
  2. Step 2: Convert to fraction form
    419,243.46/578,555.10 = 228,255.18/x
  3. Step 3: Cross multiply
    419,243.46x = 578,555.10 × 228,255.18
  4. Step 4: Simplify right side
    419,243.46x = 132,058,198,490.42
  5. Step 5: Solve for x
    x = 132,058,198,490.42/419,243.46
  6. Step 6: Final answer
    x = 314,991.67

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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.