Finding the Fourth Proportional to 527,156.31, 727,476.02 and 285,438.99
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Solution
The fourth proportional to 527,156.31, 727,476.02 and 285,438.99 is: 393,905.97
Step by Step Solution
- Step 1: Write the proportion equation
527,156.31 : 727,476.02 = 285,438.99 : x - Step 2: Convert to fraction form
527,156.31/727,476.02 = 285,438.99/x - Step 3: Cross multiply
527,156.31x = 727,476.02 × 285,438.99 - Step 4: Simplify right side
527,156.31x = 207,650,018,970.83 - Step 5: Solve for x
x = 207,650,018,970.83/527,156.31 - Step 6: Final answer
x = 393,905.97
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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.