Home / 419,427.18-578,814.39-228,442.14

Finding the Fourth Proportional to 419,427.18, 578,814.39 and 228,442.14

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Solution

The fourth proportional to 419,427.18, 578,814.39 and 228,442.14 is: 315,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,427.18 : 578,814.39 = 228,442.14 : x
  2. Step 2: Convert to fraction form
    419,427.18/578,814.39 = 228,442.14/x
  3. Step 3: Cross multiply
    419,427.18x = 578,814.39 × 228,442.14
  4. Step 4: Simplify right side
    419,427.18x = 132,225,597,914.40
  5. Step 5: Solve for x
    x = 132,225,597,914.40/419,427.18
  6. Step 6: Final answer
    x = 315,252.81

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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.