Finding the Fourth Proportional to 921,061.41, 1,380,925.08 and 388,289.99
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Solution
The fourth proportional to 921,061.41, 1,380,925.08 and 388,289.99 is: 582,153.78
Step by Step Solution
- Step 1: Write the proportion equation
921,061.41 : 1,380,925.08 = 388,289.99 : x - Step 2: Convert to fraction form
921,061.41/1,380,925.08 = 388,289.99/x - Step 3: Cross multiply
921,061.41x = 1,380,925.08 × 388,289.99 - Step 4: Simplify right side
921,061.41x = 536,199,385,503.95 - Step 5: Solve for x
x = 536,199,385,503.95/921,061.41 - Step 6: Final answer
x = 582,153.78
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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.