Finding the Fourth Proportional to 824,020.88, 1,137,220.35 and 461,438.15
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Solution
The fourth proportional to 824,020.88, 1,137,220.35 and 461,438.15 is: 636,824.70
Step by Step Solution
- Step 1: Write the proportion equation
824,020.88 : 1,137,220.35 = 461,438.15 : x - Step 2: Convert to fraction form
824,020.88/1,137,220.35 = 461,438.15/x - Step 3: Cross multiply
824,020.88x = 1,137,220.35 × 461,438.15 - Step 4: Simplify right side
824,020.88x = 524,756,848,760.25 - Step 5: Solve for x
x = 524,756,848,760.25/824,020.88 - Step 6: Final answer
x = 636,824.70
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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.