Finding the Fourth Proportional to 861,455.38, 1,292,182.99 and 230,352.79
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Solution
The fourth proportional to 861,455.38, 1,292,182.99 and 230,352.79 is: 345,529.16
Step by Step Solution
- Step 1: Write the proportion equation
861,455.38 : 1,292,182.99 = 230,352.79 : x - Step 2: Convert to fraction form
861,455.38/1,292,182.99 = 230,352.79/x - Step 3: Cross multiply
861,455.38x = 1,292,182.99 × 230,352.79 - Step 4: Simplify right side
861,455.38x = 297,657,955,785.28 - Step 5: Solve for x
x = 297,657,955,785.28/861,455.38 - Step 6: Final answer
x = 345,529.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.