Home / 419,212.20-578,493.70-228,225.13

Finding the Fourth Proportional to 419,212.20, 578,493.70 and 228,225.13

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Solution

The fourth proportional to 419,212.20, 578,493.70 and 228,225.13 is: 314,940.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,212.20 : 578,493.70 = 228,225.13 : x
  2. Step 2: Convert to fraction form
    419,212.20/578,493.70 = 228,225.13/x
  3. Step 3: Cross multiply
    419,212.20x = 578,493.70 × 228,225.13
  4. Step 4: Simplify right side
    419,212.20x = 132,026,799,886.68
  5. Step 5: Solve for x
    x = 132,026,799,886.68/419,212.20
  6. Step 6: Final answer
    x = 314,940.26

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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.