Finding the Fourth Proportional to 1,208,451.75, 1,667,630.11 and 664,587.53
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Solution
The fourth proportional to 1,208,451.75, 1,667,630.11 and 664,587.53 is: 917,112.47
Step by Step Solution
- Step 1: Write the proportion equation
1,208,451.75 : 1,667,630.11 = 664,587.53 : x - Step 2: Convert to fraction form
1,208,451.75/1,667,630.11 = 664,587.53/x - Step 3: Cross multiply
1,208,451.75x = 1,667,630.11 × 664,587.53 - Step 4: Simplify right side
1,208,451.75x = 1,108,286,167,420.38 - Step 5: Solve for x
x = 1,108,286,167,420.38/1,208,451.75 - Step 6: Final answer
x = 917,112.47
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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.