Finding the Fourth Proportional to 921,626.92, 1,271,872.08 and 539,617.96
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Solution
The fourth proportional to 921,626.92, 1,271,872.08 and 539,617.96 is: 744,688.55
Step by Step Solution
- Step 1: Write the proportion equation
921,626.92 : 1,271,872.08 = 539,617.96 : x - Step 2: Convert to fraction form
921,626.92/1,271,872.08 = 539,617.96/x - Step 3: Cross multiply
921,626.92x = 1,271,872.08 × 539,617.96 - Step 4: Simplify right side
921,626.92x = 686,325,017,190.56 - Step 5: Solve for x
x = 686,325,017,190.56/921,626.92 - Step 6: Final answer
x = 744,688.55
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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.