Finding the Fourth Proportional to 5,476,587.40, 8,215,658.70 and 1,689,675.40
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Solution
The fourth proportional to 5,476,587.40, 8,215,658.70 and 1,689,675.40 is: 2,534,753.01
Step by Step Solution
- Step 1: Write the proportion equation
5,476,587.40 : 8,215,658.70 = 1,689,675.40 : x - Step 2: Convert to fraction form
5,476,587.40/8,215,658.70 = 1,689,675.40/x - Step 3: Cross multiply
5,476,587.40x = 8,215,658.70 × 1,689,675.40 - Step 4: Simplify right side
5,476,587.40x = 13,881,796,400,185.98 - Step 5: Solve for x
x = 13,881,796,400,185.98/5,476,587.40 - Step 6: Final answer
x = 2,534,753.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.