Finding the Fourth Proportional to 729,400.84, 1,096,025.58 and 392,690.44
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Solution
The fourth proportional to 729,400.84, 1,096,025.58 and 392,690.44 is: 590,071.66
Step by Step Solution
- Step 1: Write the proportion equation
729,400.84 : 1,096,025.58 = 392,690.44 : x - Step 2: Convert to fraction form
729,400.84/1,096,025.58 = 392,690.44/x - Step 3: Cross multiply
729,400.84x = 1,096,025.58 × 392,690.44 - Step 4: Simplify right side
729,400.84x = 430,398,767,261.46 - Step 5: Solve for x
x = 430,398,767,261.46/729,400.84 - Step 6: Final answer
x = 590,071.66
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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.