Finding the Fourth Proportional to 989,037.20, 1,364,872.08 and 536,328.08
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Solution
The fourth proportional to 989,037.20, 1,364,872.08 and 536,328.08 is: 740,133.15
Step by Step Solution
- Step 1: Write the proportion equation
989,037.20 : 1,364,872.08 = 536,328.08 : x - Step 2: Convert to fraction form
989,037.20/1,364,872.08 = 536,328.08/x - Step 3: Cross multiply
989,037.20x = 1,364,872.08 × 536,328.08 - Step 4: Simplify right side
989,037.20x = 732,019,222,112.01 - Step 5: Solve for x
x = 732,019,222,112.01/989,037.20 - Step 6: Final answer
x = 740,133.15
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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.