Finding the Fourth Proportional to 818,918.14, 1,130,172.09 and 451,460.58
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Solution
The fourth proportional to 818,918.14, 1,130,172.09 and 451,460.58 is: 623,051.46
Step by Step Solution
- Step 1: Write the proportion equation
818,918.14 : 1,130,172.09 = 451,460.58 : x - Step 2: Convert to fraction form
818,918.14/1,130,172.09 = 451,460.58/x - Step 3: Cross multiply
818,918.14x = 1,130,172.09 × 451,460.58 - Step 4: Simplify right side
818,918.14x = 510,228,145,768.43 - Step 5: Solve for x
x = 510,228,145,768.43/818,918.14 - Step 6: Final answer
x = 623,051.46
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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.