Finding the Fourth Proportional to 613,970.84, 921,080.82 and 193,148.84
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Solution
The fourth proportional to 613,970.84, 921,080.82 and 193,148.84 is: 289,762.45
Step by Step Solution
- Step 1: Write the proportion equation
613,970.84 : 921,080.82 = 193,148.84 : x - Step 2: Convert to fraction form
613,970.84/921,080.82 = 193,148.84/x - Step 3: Cross multiply
613,970.84x = 921,080.82 × 193,148.84 - Step 4: Simplify right side
613,970.84x = 177,905,691,929.25 - Step 5: Solve for x
x = 177,905,691,929.25/613,970.84 - Step 6: Final answer
x = 289,762.45
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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.