Finding the Fourth Proportional to 1,247,369.48, 1,721,368.42 and 674,408.29
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Solution
The fourth proportional to 1,247,369.48, 1,721,368.42 and 674,408.29 is: 930,682.65
Step by Step Solution
- Step 1: Write the proportion equation
1,247,369.48 : 1,721,368.42 = 674,408.29 : x - Step 2: Convert to fraction form
1,247,369.48/1,721,368.42 = 674,408.29/x - Step 3: Cross multiply
1,247,369.48x = 1,721,368.42 × 674,408.29 - Step 4: Simplify right side
1,247,369.48x = 1,160,905,132,592.20 - Step 5: Solve for x
x = 1,160,905,132,592.20/1,247,369.48 - Step 6: Final answer
x = 930,682.65
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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.