Home / 419,827.36-579,367.80-228,840.76

Finding the Fourth Proportional to 419,827.36, 579,367.80 and 228,840.76

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Solution

The fourth proportional to 419,827.36, 579,367.80 and 228,840.76 is: 315,803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,827.36 : 579,367.80 = 228,840.76 : x
  2. Step 2: Convert to fraction form
    419,827.36/579,367.80 = 228,840.76/x
  3. Step 3: Cross multiply
    419,827.36x = 579,367.80 × 228,840.76
  4. Step 4: Simplify right side
    419,827.36x = 132,582,967,671.53
  5. Step 5: Solve for x
    x = 132,582,967,671.53/419,827.36
  6. Step 6: Final answer
    x = 315,803.54

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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.