Finding the Fourth Proportional to 1,281,480.78, 1,921,629.48 and 471,661.79
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Solution
The fourth proportional to 1,281,480.78, 1,921,629.48 and 471,661.79 is: 707,274.90
Step by Step Solution
- Step 1: Write the proportion equation
1,281,480.78 : 1,921,629.48 = 471,661.79 : x - Step 2: Convert to fraction form
1,281,480.78/1,921,629.48 = 471,661.79/x - Step 3: Cross multiply
1,281,480.78x = 1,921,629.48 × 471,661.79 - Step 4: Simplify right side
1,281,480.78x = 906,359,190,645.42 - Step 5: Solve for x
x = 906,359,190,645.42/1,281,480.78 - Step 6: Final answer
x = 707,274.90
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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.