Finding the Fourth Proportional to 697,427.21, 962,409.44 and 391,475.09
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Solution
The fourth proportional to 697,427.21, 962,409.44 and 391,475.09 is: 540,213.11
Step by Step Solution
- Step 1: Write the proportion equation
697,427.21 : 962,409.44 = 391,475.09 : x - Step 2: Convert to fraction form
697,427.21/962,409.44 = 391,475.09/x - Step 3: Cross multiply
697,427.21x = 962,409.44 × 391,475.09 - Step 4: Simplify right side
697,427.21x = 376,759,325,525.56 - Step 5: Solve for x
x = 376,759,325,525.56/697,427.21 - Step 6: Final answer
x = 540,213.11
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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.