Finding the Fourth Proportional to 401,801.84, 602,702.80 and 313,121.78
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Solution
The fourth proportional to 401,801.84, 602,702.80 and 313,121.78 is: 469,682.70
Step by Step Solution
- Step 1: Write the proportion equation
401,801.84 : 602,702.80 = 313,121.78 : x - Step 2: Convert to fraction form
401,801.84/602,702.80 = 313,121.78/x - Step 3: Cross multiply
401,801.84x = 602,702.80 × 313,121.78 - Step 4: Simplify right side
401,801.84x = 188,719,373,546.98 - Step 5: Solve for x
x = 188,719,373,546.98/401,801.84 - Step 6: Final answer
x = 469,682.70
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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.