Home / 419,377.19-578,746.69-228,390.12

Finding the Fourth Proportional to 419,377.19, 578,746.69 and 228,390.12

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Solution

The fourth proportional to 419,377.19, 578,746.69 and 228,390.12 is: 315,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,377.19 : 578,746.69 = 228,390.12 : x
  2. Step 2: Convert to fraction form
    419,377.19/578,746.69 = 228,390.12/x
  3. Step 3: Cross multiply
    419,377.19x = 578,746.69 × 228,390.12
  4. Step 4: Simplify right side
    419,377.19x = 132,180,025,407.73
  5. Step 5: Solve for x
    x = 132,180,025,407.73/419,377.19
  6. Step 6: Final answer
    x = 315,181.73

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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.