Finding the Fourth Proportional to 512,812.60, 707,671.02 and 311,673.40
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Solution
The fourth proportional to 512,812.60, 707,671.02 and 311,673.40 is: 430,102.99
Step by Step Solution
- Step 1: Write the proportion equation
512,812.60 : 707,671.02 = 311,673.40 : x - Step 2: Convert to fraction form
512,812.60/707,671.02 = 311,673.40/x - Step 3: Cross multiply
512,812.60x = 707,671.02 × 311,673.40 - Step 4: Simplify right side
512,812.60x = 220,562,232,884.87 - Step 5: Solve for x
x = 220,562,232,884.87/512,812.60 - Step 6: Final answer
x = 430,102.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.