Finding the Fourth Proportional to 513,465.73, 708,528.17 and 283,986.55
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Solution
The fourth proportional to 513,465.73, 708,528.17 and 283,986.55 is: 391,871.28
Step by Step Solution
- Step 1: Write the proportion equation
513,465.73 : 708,528.17 = 283,986.55 : x - Step 2: Convert to fraction form
513,465.73/708,528.17 = 283,986.55/x - Step 3: Cross multiply
513,465.73x = 708,528.17 × 283,986.55 - Step 4: Simplify right side
513,465.73x = 201,212,471,286.08 - Step 5: Solve for x
x = 201,212,471,286.08/513,465.73 - Step 6: Final answer
x = 391,871.28
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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.