Finding the Fourth Proportional to 513,261.38, 708,293.30 and 283,813.62
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Solution
The fourth proportional to 513,261.38, 708,293.30 and 283,813.62 is: 391,658.70
Step by Step Solution
- Step 1: Write the proportion equation
513,261.38 : 708,293.30 = 283,813.62 : x - Step 2: Convert to fraction form
513,261.38/708,293.30 = 283,813.62/x - Step 3: Cross multiply
513,261.38x = 708,293.30 × 283,813.62 - Step 4: Simplify right side
513,261.38x = 201,023,284,075.68 - Step 5: Solve for x
x = 201,023,284,075.68/513,261.38 - Step 6: Final answer
x = 391,658.70
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1.5x scale
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.