Finding the Fourth Proportional to 831,376.24, 1,245,795.88 and 432,146.68
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Solution
The fourth proportional to 831,376.24, 1,245,795.88 and 432,146.68 is: 647,560.67
Step by Step Solution
- Step 1: Write the proportion equation
831,376.24 : 1,245,795.88 = 432,146.68 : x - Step 2: Convert to fraction form
831,376.24/1,245,795.88 = 432,146.68/x - Step 3: Cross multiply
831,376.24x = 1,245,795.88 × 432,146.68 - Step 4: Simplify right side
831,376.24x = 538,366,553,499.68 - Step 5: Solve for x
x = 538,366,553,499.68/831,376.24 - Step 6: Final answer
x = 647,560.67
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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.