Finding the Fourth Proportional to 878,416.24, 1,317,610.50 and 279,368.74
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Solution
The fourth proportional to 878,416.24, 1,317,610.50 and 279,368.74 is: 419,048.70
Step by Step Solution
- Step 1: Write the proportion equation
878,416.24 : 1,317,610.50 = 279,368.74 : x - Step 2: Convert to fraction form
878,416.24/1,317,610.50 = 279,368.74/x - Step 3: Cross multiply
878,416.24x = 1,317,610.50 × 279,368.74 - Step 4: Simplify right side
878,416.24x = 368,099,185,195.77 - Step 5: Solve for x
x = 368,099,185,195.77/878,416.24 - Step 6: Final answer
x = 419,048.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.