Finding the Fourth Proportional to 716,740.97, 1,075,110.17 and 491,418.31
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Solution
The fourth proportional to 716,740.97, 1,075,110.17 and 491,418.31 is: 737,126.58
Step by Step Solution
- Step 1: Write the proportion equation
716,740.97 : 1,075,110.17 = 491,418.31 : x - Step 2: Convert to fraction form
716,740.97/1,075,110.17 = 491,418.31/x - Step 3: Cross multiply
716,740.97x = 1,075,110.17 × 491,418.31 - Step 4: Simplify right side
716,740.97x = 528,328,819,676.18 - Step 5: Solve for x
x = 528,328,819,676.18/716,740.97 - Step 6: Final answer
x = 737,126.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.