Finding the Fourth Proportional to 519,774.84, 717,289.20 and 281,310.84
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Solution
The fourth proportional to 519,774.84, 717,289.20 and 281,310.84 is: 388,208.92
Step by Step Solution
- Step 1: Write the proportion equation
519,774.84 : 717,289.20 = 281,310.84 : x - Step 2: Convert to fraction form
519,774.84/717,289.20 = 281,310.84/x - Step 3: Cross multiply
519,774.84x = 717,289.20 × 281,310.84 - Step 4: Simplify right side
519,774.84x = 201,781,227,374.93 - Step 5: Solve for x
x = 201,781,227,374.93/519,774.84 - Step 6: Final answer
x = 388,208.92
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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.