Finding the Fourth Proportional to 891,538.72, 1,230,408.30 and 509,491.42
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Solution
The fourth proportional to 891,538.72, 1,230,408.30 and 509,491.42 is: 703,146.66
Step by Step Solution
- Step 1: Write the proportion equation
891,538.72 : 1,230,408.30 = 509,491.42 : x - Step 2: Convert to fraction form
891,538.72/1,230,408.30 = 509,491.42/x - Step 3: Cross multiply
891,538.72x = 1,230,408.30 × 509,491.42 - Step 4: Simplify right side
891,538.72x = 626,882,471,946.79 - Step 5: Solve for x
x = 626,882,471,946.79/891,538.72 - Step 6: Final answer
x = 703,146.66
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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.