Finding the Fourth Proportional to 420,553.71, 580,572.29 and 259,497.50
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Solution
The fourth proportional to 420,553.71, 580,572.29 and 259,497.50 is: 358,234.99
Step by Step Solution
- Step 1: Write the proportion equation
420,553.71 : 580,572.29 = 259,497.50 : x - Step 2: Convert to fraction form
420,553.71/580,572.29 = 259,497.50/x - Step 3: Cross multiply
420,553.71x = 580,572.29 × 259,497.50 - Step 4: Simplify right side
420,553.71x = 150,657,055,570.16 - Step 5: Solve for x
x = 150,657,055,570.16/420,553.71 - Step 6: Final answer
x = 358,234.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.