Finding the Fourth Proportional to 812,423.34, 1,218,829.68 and 251,457.84
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Solution
The fourth proportional to 812,423.34, 1,218,829.68 and 251,457.84 is: 377,247.01
Step by Step Solution
- Step 1: Write the proportion equation
812,423.34 : 1,218,829.68 = 251,457.84 : x - Step 2: Convert to fraction form
812,423.34/1,218,829.68 = 251,457.84/x - Step 3: Cross multiply
812,423.34x = 1,218,829.68 × 251,457.84 - Step 4: Simplify right side
812,423.34x = 306,484,278,660.69 - Step 5: Solve for x
x = 306,484,278,660.69/812,423.34 - Step 6: Final answer
x = 377,247.01
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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.