Finding the Fourth Proportional to 392,779.13, 542,058.41 and 295,811.96
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Solution
The fourth proportional to 392,779.13, 542,058.41 and 295,811.96 is: 408,237.99
Step by Step Solution
- Step 1: Write the proportion equation
392,779.13 : 542,058.41 = 295,811.96 : x - Step 2: Convert to fraction form
392,779.13/542,058.41 = 295,811.96/x - Step 3: Cross multiply
392,779.13x = 542,058.41 × 295,811.96 - Step 4: Simplify right side
392,779.13x = 160,347,358,725.82 - Step 5: Solve for x
x = 160,347,358,725.82/392,779.13 - Step 6: Final answer
x = 408,237.99
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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.