Finding the Fourth Proportional to 1,265,536.88, 1,747,255.98 and 1,129,336.62
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Solution
The fourth proportional to 1,265,536.88, 1,747,255.98 and 1,129,336.62 is: 1,559,211.90
Step by Step Solution
- Step 1: Write the proportion equation
1,265,536.88 : 1,747,255.98 = 1,129,336.62 : x - Step 2: Convert to fraction form
1,265,536.88/1,747,255.98 = 1,129,336.62/x - Step 3: Cross multiply
1,265,536.88x = 1,747,255.98 × 1,129,336.62 - Step 4: Simplify right side
1,265,536.88x = 1,973,240,162,727.99 - Step 5: Solve for x
x = 1,973,240,162,727.99/1,265,536.88 - Step 6: Final answer
x = 1,559,211.90
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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.