Finding the Fourth Proportional to 905,893.74, 1,250,157.42 and 492,458.37
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Solution
The fourth proportional to 905,893.74, 1,250,157.42 and 492,458.37 is: 679,605.63
Step by Step Solution
- Step 1: Write the proportion equation
905,893.74 : 1,250,157.42 = 492,458.37 : x - Step 2: Convert to fraction form
905,893.74/1,250,157.42 = 492,458.37/x - Step 3: Cross multiply
905,893.74x = 1,250,157.42 × 492,458.37 - Step 4: Simplify right side
905,893.74x = 615,650,485,296.61 - Step 5: Solve for x
x = 615,650,485,296.61/905,893.74 - Step 6: Final answer
x = 679,605.63
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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.