Finding the Fourth Proportional to 513,433.11, 708,531.62 and 283,972.38
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Solution
The fourth proportional to 513,433.11, 708,531.62 and 283,972.38 is: 391,878.53
Step by Step Solution
- Step 1: Write the proportion equation
513,433.11 : 708,531.62 = 283,972.38 : x - Step 2: Convert to fraction form
513,433.11/708,531.62 = 283,972.38/x - Step 3: Cross multiply
513,433.11x = 708,531.62 × 283,972.38 - Step 4: Simplify right side
513,433.11x = 201,203,410,744.63 - Step 5: Solve for x
x = 201,203,410,744.63/513,433.11 - Step 6: Final answer
x = 391,878.53
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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.