Finding the Fourth Proportional to 472,476.51, 708,451.87 and 280,428.99
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Solution
The fourth proportional to 472,476.51, 708,451.87 and 280,428.99 is: 420,487.45
Step by Step Solution
- Step 1: Write the proportion equation
472,476.51 : 708,451.87 = 280,428.99 : x - Step 2: Convert to fraction form
472,476.51/708,451.87 = 280,428.99/x - Step 3: Cross multiply
472,476.51x = 708,451.87 × 280,428.99 - Step 4: Simplify right side
472,476.51x = 198,670,442,367.71 - Step 5: Solve for x
x = 198,670,442,367.71/472,476.51 - Step 6: Final answer
x = 420,487.45
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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.