Finding the Fourth Proportional to 781,872.70, 1,079,085.96 and 437,839.62
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Solution
The fourth proportional to 781,872.70, 1,079,085.96 and 437,839.62 is: 604,275.59
Step by Step Solution
- Step 1: Write the proportion equation
781,872.70 : 1,079,085.96 = 437,839.62 : x - Step 2: Convert to fraction form
781,872.70/1,079,085.96 = 437,839.62/x - Step 3: Cross multiply
781,872.70x = 1,079,085.96 × 437,839.62 - Step 4: Simplify right side
781,872.70x = 472,466,586,673.74 - Step 5: Solve for x
x = 472,466,586,673.74/781,872.70 - Step 6: Final answer
x = 604,275.59
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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.