Finding the Fourth Proportional to 1,219,630.23, 1,829,736.09 and 420,918.75
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Solution
The fourth proportional to 1,219,630.23, 1,829,736.09 and 420,918.75 is: 631,478.47
Step by Step Solution
- Step 1: Write the proportion equation
1,219,630.23 : 1,829,736.09 = 420,918.75 : x - Step 2: Convert to fraction form
1,219,630.23/1,829,736.09 = 420,918.75/x - Step 3: Cross multiply
1,219,630.23x = 1,829,736.09 × 420,918.75 - Step 4: Simplify right side
1,219,630.23x = 770,170,227,832.69 - Step 5: Solve for x
x = 770,170,227,832.69/1,219,630.23 - Step 6: Final answer
x = 631,478.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.