Finding the Fourth Proportional to 708,904.84, 1,062,438.72 and 287,951.08
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Solution
The fourth proportional to 708,904.84, 1,062,438.72 and 287,951.08 is: 431,553.52
Step by Step Solution
- Step 1: Write the proportion equation
708,904.84 : 1,062,438.72 = 287,951.08 : x - Step 2: Convert to fraction form
708,904.84/1,062,438.72 = 287,951.08/x - Step 3: Cross multiply
708,904.84x = 1,062,438.72 × 287,951.08 - Step 4: Simplify right side
708,904.84x = 305,930,376,857.82 - Step 5: Solve for x
x = 305,930,376,857.82/708,904.84 - Step 6: Final answer
x = 431,553.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.