Finding the Fourth Proportional to 879,138.84, 1,318,657.24 and 339,289.52
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Solution
The fourth proportional to 879,138.84, 1,318,657.24 and 339,289.52 is: 508,914.59
Step by Step Solution
- Step 1: Write the proportion equation
879,138.84 : 1,318,657.24 = 339,289.52 : x - Step 2: Convert to fraction form
879,138.84/1,318,657.24 = 339,289.52/x - Step 3: Cross multiply
879,138.84x = 1,318,657.24 × 339,289.52 - Step 4: Simplify right side
879,138.84x = 447,406,582,004.13 - Step 5: Solve for x
x = 447,406,582,004.13/879,138.84 - Step 6: Final answer
x = 508,914.59
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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.