Finding the Fourth Proportional to 487,045.20, 671,687.19 and 305,774.03
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Solution
The fourth proportional to 487,045.20, 671,687.19 and 305,774.03 is: 421,694.94
Step by Step Solution
- Step 1: Write the proportion equation
487,045.20 : 671,687.19 = 305,774.03 : x - Step 2: Convert to fraction form
487,045.20/671,687.19 = 305,774.03/x - Step 3: Cross multiply
487,045.20x = 671,687.19 × 305,774.03 - Step 4: Simplify right side
487,045.20x = 205,384,495,627.24 - Step 5: Solve for x
x = 205,384,495,627.24/487,045.20 - Step 6: Final answer
x = 421,694.94
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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.