Finding the Fourth Proportional to 790,159.68, 1,090,918.80 and 548,364.96
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Solution
The fourth proportional to 790,159.68, 1,090,918.80 and 548,364.96 is: 757,089.56
Step by Step Solution
- Step 1: Write the proportion equation
790,159.68 : 1,090,918.80 = 548,364.96 : x - Step 2: Convert to fraction form
790,159.68/1,090,918.80 = 548,364.96/x - Step 3: Cross multiply
790,159.68x = 1,090,918.80 × 548,364.96 - Step 4: Simplify right side
790,159.68x = 598,221,644,125.25 - Step 5: Solve for x
x = 598,221,644,125.25/790,159.68 - Step 6: Final answer
x = 757,089.56
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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.