Finding the Fourth Proportional to 644,326.84, 965,398.74 and 394,486.84
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Solution
The fourth proportional to 644,326.84, 965,398.74 and 394,486.84 is: 591,061.98
Step by Step Solution
- Step 1: Write the proportion equation
644,326.84 : 965,398.74 = 394,486.84 : x - Step 2: Convert to fraction form
644,326.84/965,398.74 = 394,486.84/x - Step 3: Cross multiply
644,326.84x = 965,398.74 × 394,486.84 - Step 4: Simplify right side
644,326.84x = 380,837,098,282.58 - Step 5: Solve for x
x = 380,837,098,282.58/644,326.84 - Step 6: Final answer
x = 591,061.98
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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.