Finding the Fourth Proportional to 553,194.97, 763,400.60 and 311,476.79
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Solution
The fourth proportional to 553,194.97, 763,400.60 and 311,476.79 is: 429,833.21
Step by Step Solution
- Step 1: Write the proportion equation
553,194.97 : 763,400.60 = 311,476.79 : x - Step 2: Convert to fraction form
553,194.97/763,400.60 = 311,476.79/x - Step 3: Cross multiply
553,194.97x = 763,400.60 × 311,476.79 - Step 4: Simplify right side
553,194.97x = 237,781,569,891.23 - Step 5: Solve for x
x = 237,781,569,891.23/553,194.97 - Step 6: Final answer
x = 429,833.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.