Finding the Fourth Proportional to 1,173,175.88, 1,618,982.71 and 636,631.88
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Solution
The fourth proportional to 1,173,175.88, 1,618,982.71 and 636,631.88 is: 878,551.99
Step by Step Solution
- Step 1: Write the proportion equation
1,173,175.88 : 1,618,982.71 = 636,631.88 : x - Step 2: Convert to fraction form
1,173,175.88/1,618,982.71 = 636,631.88/x - Step 3: Cross multiply
1,173,175.88x = 1,618,982.71 × 636,631.88 - Step 4: Simplify right side
1,173,175.88x = 1,030,695,996,668.30 - Step 5: Solve for x
x = 1,030,695,996,668.30/1,173,175.88 - Step 6: Final answer
x = 878,551.99
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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.