Finding the Fourth Proportional to 513,467.98, 708,531.27 and 283,988.80
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Solution
The fourth proportional to 513,467.98, 708,531.27 and 283,988.80 is: 391,874.38
Step by Step Solution
- Step 1: Write the proportion equation
513,467.98 : 708,531.27 = 283,988.80 : x - Step 2: Convert to fraction form
513,467.98/708,531.27 = 283,988.80/x - Step 3: Cross multiply
513,467.98x = 708,531.27 × 283,988.80 - Step 4: Simplify right side
513,467.98x = 201,214,945,129.78 - Step 5: Solve for x
x = 201,214,945,129.78/513,467.98 - Step 6: Final answer
x = 391,874.38
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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.