Finding the Fourth Proportional to 819,277.14, 1,130,139.39 and 512,821.53
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Solution
The fourth proportional to 819,277.14, 1,130,139.39 and 512,821.53 is: 707,403.86
Step by Step Solution
- Step 1: Write the proportion equation
819,277.14 : 1,130,139.39 = 512,821.53 : x - Step 2: Convert to fraction form
819,277.14/1,130,139.39 = 512,821.53/x - Step 3: Cross multiply
819,277.14x = 1,130,139.39 × 512,821.53 - Step 4: Simplify right side
819,277.14x = 579,559,811,093.07 - Step 5: Solve for x
x = 579,559,811,093.07/819,277.14 - Step 6: Final answer
x = 707,403.86
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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.