Finding the Fourth Proportional to 908,438.20, 1,362,657.30 and 402,803.80
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Solution
The fourth proportional to 908,438.20, 1,362,657.30 and 402,803.80 is: 604,205.70
Step by Step Solution
- Step 1: Write the proportion equation
908,438.20 : 1,362,657.30 = 402,803.80 : x - Step 2: Convert to fraction form
908,438.20/1,362,657.30 = 402,803.80/x - Step 3: Cross multiply
908,438.20x = 1,362,657.30 × 402,803.80 - Step 4: Simplify right side
908,438.20x = 548,883,538,537.74 - Step 5: Solve for x
x = 548,883,538,537.74/908,438.20 - Step 6: Final answer
x = 604,205.70
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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.