Finding the Fourth Proportional to 782,582.40, 1,078,029.12 and 667,486.08
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Solution
The fourth proportional to 782,582.40, 1,078,029.12 and 667,486.08 is: 919,480.72
Step by Step Solution
- Step 1: Write the proportion equation
782,582.40 : 1,078,029.12 = 667,486.08 : x - Step 2: Convert to fraction form
782,582.40/1,078,029.12 = 667,486.08/x - Step 3: Cross multiply
782,582.40x = 1,078,029.12 × 667,486.08 - Step 4: Simplify right side
782,582.40x = 719,569,431,434.65 - Step 5: Solve for x
x = 719,569,431,434.65/782,582.40 - Step 6: Final answer
x = 919,480.72
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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.