Home / 419,533.56-578,973.87-228,557.43

Finding the Fourth Proportional to 419,533.56, 578,973.87 and 228,557.43

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Solution

The fourth proportional to 419,533.56, 578,973.87 and 228,557.43 is: 315,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,533.56 : 578,973.87 = 228,557.43 : x
  2. Step 2: Convert to fraction form
    419,533.56/578,973.87 = 228,557.43/x
  3. Step 3: Cross multiply
    419,533.56x = 578,973.87 × 228,557.43
  4. Step 4: Simplify right side
    419,533.56x = 132,328,779,764.35
  5. Step 5: Solve for x
    x = 132,328,779,764.35/419,533.56
  6. Step 6: Final answer
    x = 315,418.82

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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.