Finding the Fourth Proportional to 1,431,915, 1,975,992.12 and 787,330.68
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Solution
The fourth proportional to 1,431,915, 1,975,992.12 and 787,330.68 is: 1,086,488.53
Step by Step Solution
- Step 1: Write the proportion equation
1,431,915 : 1,975,992.12 = 787,330.68 : x - Step 2: Convert to fraction form
1,431,915/1,975,992.12 = 787,330.68/x - Step 3: Cross multiply
1,431,915x = 1,975,992.12 × 787,330.68 - Step 4: Simplify right side
1,431,915x = 1,555,759,219,514.24 - Step 5: Solve for x
x = 1,555,759,219,514.24/1,431,915 - Step 6: Final answer
x = 1,086,488.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.