Finding the Fourth Proportional to 420,783.48, 580,685.82 and 229,802.49
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Solution
The fourth proportional to 420,783.48, 580,685.82 and 229,802.49 is: 317,129.95
Step by Step Solution
- Step 1: Write the proportion equation
420,783.48 : 580,685.82 = 229,802.49 : x - Step 2: Convert to fraction form
420,783.48/580,685.82 = 229,802.49/x - Step 3: Cross multiply
420,783.48x = 580,685.82 × 229,802.49 - Step 4: Simplify right side
420,783.48x = 133,443,043,291.25 - Step 5: Solve for x
x = 133,443,043,291.25/420,783.48 - Step 6: Final answer
x = 317,129.95
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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.