Finding the Fourth Proportional to 513,242.21, 708,212.40 and 283,768.53
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Solution
The fourth proportional to 513,242.21, 708,212.40 and 283,768.53 is: 391,566.38
Step by Step Solution
- Step 1: Write the proportion equation
513,242.21 : 708,212.40 = 283,768.53 : x - Step 2: Convert to fraction form
513,242.21/708,212.40 = 283,768.53/x - Step 3: Cross multiply
513,242.21x = 708,212.40 × 283,768.53 - Step 4: Simplify right side
513,242.21x = 200,968,391,675.77 - Step 5: Solve for x
x = 200,968,391,675.77/513,242.21 - Step 6: Final answer
x = 391,566.38
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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.