Finding the Fourth Proportional to 561,872.84, 775,387.08 and 307,223.82
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Solution
The fourth proportional to 561,872.84, 775,387.08 and 307,223.82 is: 423,970.28
Step by Step Solution
- Step 1: Write the proportion equation
561,872.84 : 775,387.08 = 307,223.82 : x - Step 2: Convert to fraction form
561,872.84/775,387.08 = 307,223.82/x - Step 3: Cross multiply
561,872.84x = 775,387.08 × 307,223.82 - Step 4: Simplify right side
561,872.84x = 238,217,380,696.25 - Step 5: Solve for x
x = 238,217,380,696.25/561,872.84 - Step 6: Final answer
x = 423,970.28
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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.