Finding the Fourth Proportional to 879,139.84, 1,318,658.74 and 339,290.52
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Solution
The fourth proportional to 879,139.84, 1,318,658.74 and 339,290.52 is: 508,916.09
Step by Step Solution
- Step 1: Write the proportion equation
879,139.84 : 1,318,658.74 = 339,290.52 : x - Step 2: Convert to fraction form
879,139.84/1,318,658.74 = 339,290.52/x - Step 3: Cross multiply
879,139.84x = 1,318,658.74 × 339,290.52 - Step 4: Simplify right side
879,139.84x = 447,408,409,597.15 - Step 5: Solve for x
x = 447,408,409,597.15/879,139.84 - Step 6: Final answer
x = 508,916.09
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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.