Finding the Fourth Proportional to 824,543.10, 1,236,814.65 and 637,688.70
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Solution
The fourth proportional to 824,543.10, 1,236,814.65 and 637,688.70 is: 956,533.05
Step by Step Solution
- Step 1: Write the proportion equation
824,543.10 : 1,236,814.65 = 637,688.70 : x - Step 2: Convert to fraction form
824,543.10/1,236,814.65 = 637,688.70/x - Step 3: Cross multiply
824,543.10x = 1,236,814.65 × 637,688.70 - Step 4: Simplify right side
824,543.10x = 788,702,726,299.46 - Step 5: Solve for x
x = 788,702,726,299.46/824,543.10 - Step 6: Final answer
x = 956,533.05
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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.