Finding the Fourth Proportional to 840,478.26, 1,159,770.56 and 472,948.98
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Solution
The fourth proportional to 840,478.26, 1,159,770.56 and 472,948.98 is: 652,619.26
Step by Step Solution
- Step 1: Write the proportion equation
840,478.26 : 1,159,770.56 = 472,948.98 : x - Step 2: Convert to fraction form
840,478.26/1,159,770.56 = 472,948.98/x - Step 3: Cross multiply
840,478.26x = 1,159,770.56 × 472,948.98 - Step 4: Simplify right side
840,478.26x = 548,512,296,672.14 - Step 5: Solve for x
x = 548,512,296,672.14/840,478.26 - Step 6: Final answer
x = 652,619.26
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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.