Home / 419,035.75-578,258.25-228,045.05

Finding the Fourth Proportional to 419,035.75, 578,258.25 and 228,045.05

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Solution

The fourth proportional to 419,035.75, 578,258.25 and 228,045.05 is: 314,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,035.75 : 578,258.25 = 228,045.05 : x
  2. Step 2: Convert to fraction form
    419,035.75/578,258.25 = 228,045.05/x
  3. Step 3: Cross multiply
    419,035.75x = 578,258.25 × 228,045.05
  4. Step 4: Simplify right side
    419,035.75x = 131,868,930,393.94
  5. Step 5: Solve for x
    x = 131,868,930,393.94/419,035.75
  6. Step 6: Final answer
    x = 314,696.13

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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.