Finding the Fourth Proportional to 912,348.12, 1,258,989.74 and 504,426.12
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Solution
The fourth proportional to 912,348.12, 1,258,989.74 and 504,426.12 is: 696,080.03
Step by Step Solution
- Step 1: Write the proportion equation
912,348.12 : 1,258,989.74 = 504,426.12 : x - Step 2: Convert to fraction form
912,348.12/1,258,989.74 = 504,426.12/x - Step 3: Cross multiply
912,348.12x = 1,258,989.74 × 504,426.12 - Step 4: Simplify right side
912,348.12x = 635,067,309,668.01 - Step 5: Solve for x
x = 635,067,309,668.01/912,348.12 - Step 6: Final answer
x = 696,080.03
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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.