Finding the Fourth Proportional to 757,461.78, 1,045,676.05 and 471,074.14
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Solution
The fourth proportional to 757,461.78, 1,045,676.05 and 471,074.14 is: 650,317.89
Step by Step Solution
- Step 1: Write the proportion equation
757,461.78 : 1,045,676.05 = 471,074.14 : x - Step 2: Convert to fraction form
757,461.78/1,045,676.05 = 471,074.14/x - Step 3: Cross multiply
757,461.78x = 1,045,676.05 × 471,074.14 - Step 4: Simplify right side
757,461.78x = 492,590,945,972.35 - Step 5: Solve for x
x = 492,590,945,972.35/757,461.78 - Step 6: Final answer
x = 650,317.89
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1.5x scale
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.