Finding the Fourth Proportional to 513,471.56, 708,536.21 and 283,992.38
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Solution
The fourth proportional to 513,471.56, 708,536.21 and 283,992.38 is: 391,879.32
Step by Step Solution
- Step 1: Write the proportion equation
513,471.56 : 708,536.21 = 283,992.38 : x - Step 2: Convert to fraction form
513,471.56/708,536.21 = 283,992.38/x - Step 3: Cross multiply
513,471.56x = 708,536.21 × 283,992.38 - Step 4: Simplify right side
513,471.56x = 201,218,884,594.08 - Step 5: Solve for x
x = 201,218,884,594.08/513,471.56 - Step 6: Final answer
x = 391,879.32
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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.