Finding the Fourth Proportional to 1,438,513.48, 1,985,138.85 and 793,933.68
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Solution
The fourth proportional to 1,438,513.48, 1,985,138.85 and 793,933.68 is: 1,095,623.10
Step by Step Solution
- Step 1: Write the proportion equation
1,438,513.48 : 1,985,138.85 = 793,933.68 : x - Step 2: Convert to fraction form
1,438,513.48/1,985,138.85 = 793,933.68/x - Step 3: Cross multiply
1,438,513.48x = 1,985,138.85 × 793,933.68 - Step 4: Simplify right side
1,438,513.48x = 1,576,068,592,491.47 - Step 5: Solve for x
x = 1,576,068,592,491.47/1,438,513.48 - Step 6: Final answer
x = 1,095,623.10
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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.