Finding the Fourth Proportional to 654,306.10, 902,880.21 and 382,437.70
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Solution
The fourth proportional to 654,306.10, 902,880.21 and 382,437.70 is: 527,727.67
Step by Step Solution
- Step 1: Write the proportion equation
654,306.10 : 902,880.21 = 382,437.70 : x - Step 2: Convert to fraction form
654,306.10/902,880.21 = 382,437.70/x - Step 3: Cross multiply
654,306.10x = 902,880.21 × 382,437.70 - Step 4: Simplify right side
654,306.10x = 345,295,430,887.92 - Step 5: Solve for x
x = 345,295,430,887.92/654,306.10 - Step 6: Final answer
x = 527,727.67
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1.5x scale
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.