Finding the Fourth Proportional to 921,229.79, 1,271,264.76 and 513,310.55
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Solution
The fourth proportional to 921,229.79, 1,271,264.76 and 513,310.55 is: 708,350.53
Step by Step Solution
- Step 1: Write the proportion equation
921,229.79 : 1,271,264.76 = 513,310.55 : x - Step 2: Convert to fraction form
921,229.79/1,271,264.76 = 513,310.55/x - Step 3: Cross multiply
921,229.79x = 1,271,264.76 × 513,310.55 - Step 4: Simplify right side
921,229.79x = 652,553,606,794.89 - Step 5: Solve for x
x = 652,553,606,794.89/921,229.79 - Step 6: Final answer
x = 708,350.53
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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.