Finding the Fourth Proportional to 456,087.15, 680,790.60 and 402,219.99
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Solution
The fourth proportional to 456,087.15, 680,790.60 and 402,219.99 is: 600,384.35
Step by Step Solution
- Step 1: Write the proportion equation
456,087.15 : 680,790.60 = 402,219.99 : x - Step 2: Convert to fraction form
456,087.15/680,790.60 = 402,219.99/x - Step 3: Cross multiply
456,087.15x = 680,790.60 × 402,219.99 - Step 4: Simplify right side
456,087.15x = 273,827,588,324.09 - Step 5: Solve for x
x = 273,827,588,324.09/456,087.15 - Step 6: Final answer
x = 600,384.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.