Home / 419,515.02-578,927.91-228,528.54

Finding the Fourth Proportional to 419,515.02, 578,927.91 and 228,528.54

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Solution

The fourth proportional to 419,515.02, 578,927.91 and 228,528.54 is: 315,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,515.02 : 578,927.91 = 228,528.54 : x
  2. Step 2: Convert to fraction form
    419,515.02/578,927.91 = 228,528.54/x
  3. Step 3: Cross multiply
    419,515.02x = 578,927.91 × 228,528.54
  4. Step 4: Simplify right side
    419,515.02x = 132,301,550,037.55
  5. Step 5: Solve for x
    x = 132,301,550,037.55/419,515.02
  6. Step 6: Final answer
    x = 315,367.85

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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.