Finding the Fourth Proportional to 606,905.20, 910,357.80 and 492,743.80
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Solution
The fourth proportional to 606,905.20, 910,357.80 and 492,743.80 is: 739,115.70
Step by Step Solution
- Step 1: Write the proportion equation
606,905.20 : 910,357.80 = 492,743.80 : x - Step 2: Convert to fraction form
606,905.20/910,357.80 = 492,743.80/x - Step 3: Cross multiply
606,905.20x = 910,357.80 × 492,743.80 - Step 4: Simplify right side
606,905.20x = 448,573,161,731.64 - Step 5: Solve for x
x = 448,573,161,731.64/606,905.20 - Step 6: Final answer
x = 739,115.70
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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.