Finding the Fourth Proportional to 890,963.40, 1,336,751.10 and 259,969.80
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Solution
The fourth proportional to 890,963.40, 1,336,751.10 and 259,969.80 is: 390,043.99
Step by Step Solution
- Step 1: Write the proportion equation
890,963.40 : 1,336,751.10 = 259,969.80 : x - Step 2: Convert to fraction form
890,963.40/1,336,751.10 = 259,969.80/x - Step 3: Cross multiply
890,963.40x = 1,336,751.10 × 259,969.80 - Step 4: Simplify right side
890,963.40x = 347,514,916,116.78 - Step 5: Solve for x
x = 347,514,916,116.78/890,963.40 - Step 6: Final answer
x = 390,043.99
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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.