Finding the Fourth Proportional to 885,761.20, 1,328,641.80 and 614,135.80
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Solution
The fourth proportional to 885,761.20, 1,328,641.80 and 614,135.80 is: 921,203.70
Step by Step Solution
- Step 1: Write the proportion equation
885,761.20 : 1,328,641.80 = 614,135.80 : x - Step 2: Convert to fraction form
885,761.20/1,328,641.80 = 614,135.80/x - Step 3: Cross multiply
885,761.20x = 1,328,641.80 × 614,135.80 - Step 4: Simplify right side
885,761.20x = 815,966,494,756.44 - Step 5: Solve for x
x = 815,966,494,756.44/885,761.20 - Step 6: Final answer
x = 921,203.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.