Finding the Fourth Proportional to 815,706.14, 1,125,636.26 and 453,152.09
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Solution
The fourth proportional to 815,706.14, 1,125,636.26 and 453,152.09 is: 625,328.66
Step by Step Solution
- Step 1: Write the proportion equation
815,706.14 : 1,125,636.26 = 453,152.09 : x - Step 2: Convert to fraction form
815,706.14/1,125,636.26 = 453,152.09/x - Step 3: Cross multiply
815,706.14x = 1,125,636.26 × 453,152.09 - Step 4: Simplify right side
815,706.14x = 510,084,424,347.11 - Step 5: Solve for x
x = 510,084,424,347.11/815,706.14 - Step 6: Final answer
x = 625,328.66
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1.5x scale
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.