Home / 419,225.85-578,531.75-228,239.25

Finding the Fourth Proportional to 419,225.85, 578,531.75 and 228,239.25

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Solution

The fourth proportional to 419,225.85, 578,531.75 and 228,239.25 is: 314,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,225.85 : 578,531.75 = 228,239.25 : x
  2. Step 2: Convert to fraction form
    419,225.85/578,531.75 = 228,239.25/x
  3. Step 3: Cross multiply
    419,225.85x = 578,531.75 × 228,239.25
  4. Step 4: Simplify right side
    419,225.85x = 132,043,651,579.99
  5. Step 5: Solve for x
    x = 132,043,651,579.99/419,225.85
  6. Step 6: Final answer
    x = 314,970.20

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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.