Finding the Fourth Proportional to 877,817.82, 1,211,910.66 and 555,803.94
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Solution
The fourth proportional to 877,817.82, 1,211,910.66 and 555,803.94 is: 767,339.99
Step by Step Solution
- Step 1: Write the proportion equation
877,817.82 : 1,211,910.66 = 555,803.94 : x - Step 2: Convert to fraction form
877,817.82/1,211,910.66 = 555,803.94/x - Step 3: Cross multiply
877,817.82x = 1,211,910.66 × 555,803.94 - Step 4: Simplify right side
877,817.82x = 673,584,719,756.00 - Step 5: Solve for x
x = 673,584,719,756.00/877,817.82 - Step 6: Final answer
x = 767,339.99
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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.