Finding the Fourth Proportional to 642,916.24, 886,608.93 and 384,749.26
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Solution
The fourth proportional to 642,916.24, 886,608.93 and 384,749.26 is: 530,585.65
Step by Step Solution
- Step 1: Write the proportion equation
642,916.24 : 886,608.93 = 384,749.26 : x - Step 2: Convert to fraction form
642,916.24/886,608.93 = 384,749.26/x - Step 3: Cross multiply
642,916.24x = 886,608.93 × 384,749.26 - Step 4: Simplify right side
642,916.24x = 341,122,129,726.89 - Step 5: Solve for x
x = 341,122,129,726.89/642,916.24 - Step 6: Final answer
x = 530,585.65
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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.