Finding the Fourth Proportional to 513,448.21, 708,531.62 and 284,001.84
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Solution
The fourth proportional to 513,448.21, 708,531.62 and 284,001.84 is: 391,907.66
Step by Step Solution
- Step 1: Write the proportion equation
513,448.21 : 708,531.62 = 284,001.84 : x - Step 2: Convert to fraction form
513,448.21/708,531.62 = 284,001.84/x - Step 3: Cross multiply
513,448.21x = 708,531.62 × 284,001.84 - Step 4: Simplify right side
513,448.21x = 201,224,284,488.19 - Step 5: Solve for x
x = 201,224,284,488.19/513,448.21 - Step 6: Final answer
x = 391,907.66
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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.