Finding the Fourth Proportional to 679,718.61, 1,019,511.68 and 206,408.07
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Solution
The fourth proportional to 679,718.61, 1,019,511.68 and 206,408.07 is: 309,591.99
Step by Step Solution
- Step 1: Write the proportion equation
679,718.61 : 1,019,511.68 = 206,408.07 : x - Step 2: Convert to fraction form
679,718.61/1,019,511.68 = 206,408.07/x - Step 3: Cross multiply
679,718.61x = 1,019,511.68 × 206,408.07 - Step 4: Simplify right side
679,718.61x = 210,435,437,179.22 - Step 5: Solve for x
x = 210,435,437,179.22/679,718.61 - Step 6: Final answer
x = 309,591.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.