Home / 419,005.10-578,225.96-228,018.44

Finding the Fourth Proportional to 419,005.10, 578,225.96 and 228,018.44

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Solution

The fourth proportional to 419,005.10, 578,225.96 and 228,018.44 is: 314,664.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,005.10 : 578,225.96 = 228,018.44 : x
  2. Step 2: Convert to fraction form
    419,005.10/578,225.96 = 228,018.44/x
  3. Step 3: Cross multiply
    419,005.10x = 578,225.96 × 228,018.44
  4. Step 4: Simplify right side
    419,005.10x = 131,846,181,366.70
  5. Step 5: Solve for x
    x = 131,846,181,366.70/419,005.10
  6. Step 6: Final answer
    x = 314,664.86

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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.