Finding the Fourth Proportional to 921,636.42, 1,271,840.06 and 513,713.94
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Solution
The fourth proportional to 921,636.42, 1,271,840.06 and 513,713.94 is: 708,915.09
Step by Step Solution
- Step 1: Write the proportion equation
921,636.42 : 1,271,840.06 = 513,713.94 : x - Step 2: Convert to fraction form
921,636.42/1,271,840.06 = 513,713.94/x - Step 3: Cross multiply
921,636.42x = 1,271,840.06 × 513,713.94 - Step 4: Simplify right side
921,636.42x = 653,361,968,272.44 - Step 5: Solve for x
x = 653,361,968,272.44/921,636.42 - Step 6: Final answer
x = 708,915.09
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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.