Finding the Fourth Proportional to 1,271,689.80, 1,906,348.84 and 429,652.68
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Solution
The fourth proportional to 1,271,689.80, 1,906,348.84 and 429,652.68 is: 644,078.37
Step by Step Solution
- Step 1: Write the proportion equation
1,271,689.80 : 1,906,348.84 = 429,652.68 : x - Step 2: Convert to fraction form
1,271,689.80/1,906,348.84 = 429,652.68/x - Step 3: Cross multiply
1,271,689.80x = 1,906,348.84 × 429,652.68 - Step 4: Simplify right side
1,271,689.80x = 819,067,888,120.89 - Step 5: Solve for x
x = 819,067,888,120.89/1,271,689.80 - Step 6: Final answer
x = 644,078.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.