Home / 419,733.09-579,214.80-228,742.38

Finding the Fourth Proportional to 419,733.09, 579,214.80 and 228,742.38

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Solution

The fourth proportional to 419,733.09, 579,214.80 and 228,742.38 is: 315,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,733.09 : 579,214.80 = 228,742.38 : x
  2. Step 2: Convert to fraction form
    419,733.09/579,214.80 = 228,742.38/x
  3. Step 3: Cross multiply
    419,733.09x = 579,214.80 × 228,742.38
  4. Step 4: Simplify right side
    419,733.09x = 132,490,971,883.22
  5. Step 5: Solve for x
    x = 132,490,971,883.22/419,733.09
  6. Step 6: Final answer
    x = 315,655.29

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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.