Finding the Fourth Proportional to 819,594.09, 1,131,114.47 and 497,386.17
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Solution
The fourth proportional to 819,594.09, 1,131,114.47 and 497,386.17 is: 686,438.20
Step by Step Solution
- Step 1: Write the proportion equation
819,594.09 : 1,131,114.47 = 497,386.17 : x - Step 2: Convert to fraction form
819,594.09/1,131,114.47 = 497,386.17/x - Step 3: Cross multiply
819,594.09x = 1,131,114.47 × 497,386.17 - Step 4: Simplify right side
819,594.09x = 562,600,691,577.95 - Step 5: Solve for x
x = 562,600,691,577.95/819,594.09 - Step 6: Final answer
x = 686,438.20
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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.