Home / 419,211.24-578,508-228,224.22

Finding the Fourth Proportional to 419,211.24, 578,508 and 228,224.22

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Solution

The fourth proportional to 419,211.24, 578,508 and 228,224.22 is: 314,947.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,211.24 : 578,508 = 228,224.22 : x
  2. Step 2: Convert to fraction form
    419,211.24/578,508 = 228,224.22/x
  3. Step 3: Cross multiply
    419,211.24x = 578,508 × 228,224.22
  4. Step 4: Simplify right side
    419,211.24x = 132,029,537,063.76
  5. Step 5: Solve for x
    x = 132,029,537,063.76/419,211.24
  6. Step 6: Final answer
    x = 314,947.51

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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.