Finding the Fourth Proportional to 755,283.72, 1,042,317.90 and 411,147.99
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Solution
The fourth proportional to 755,283.72, 1,042,317.90 and 411,147.99 is: 567,398.58
Step by Step Solution
- Step 1: Write the proportion equation
755,283.72 : 1,042,317.90 = 411,147.99 : x - Step 2: Convert to fraction form
755,283.72/1,042,317.90 = 411,147.99/x - Step 3: Cross multiply
755,283.72x = 1,042,317.90 × 411,147.99 - Step 4: Simplify right side
755,283.72x = 428,546,909,526.02 - Step 5: Solve for x
x = 428,546,909,526.02/755,283.72 - Step 6: Final answer
x = 567,398.58
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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.