Finding the Fourth Proportional to 758,965.96, 1,138,281.31 and 219,104.92
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Solution
The fourth proportional to 758,965.96, 1,138,281.31 and 219,104.92 is: 328,608.99
Step by Step Solution
- Step 1: Write the proportion equation
758,965.96 : 1,138,281.31 = 219,104.92 : x - Step 2: Convert to fraction form
758,965.96/1,138,281.31 = 219,104.92/x - Step 3: Cross multiply
758,965.96x = 1,138,281.31 × 219,104.92 - Step 4: Simplify right side
758,965.96x = 249,403,035,365.05 - Step 5: Solve for x
x = 249,403,035,365.05/758,965.96 - Step 6: Final answer
x = 328,608.99
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1.5x scale
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.