Finding the Fourth Proportional to 1,560,678.12, 2,341,173.12 and 423,458.40
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Solution
The fourth proportional to 1,560,678.12, 2,341,173.12 and 423,458.40 is: 635,229.91
Step by Step Solution
- Step 1: Write the proportion equation
1,560,678.12 : 2,341,173.12 = 423,458.40 : x - Step 2: Convert to fraction form
1,560,678.12/2,341,173.12 = 423,458.40/x - Step 3: Cross multiply
1,560,678.12x = 2,341,173.12 × 423,458.40 - Step 4: Simplify right side
1,560,678.12x = 991,389,423,518.21 - Step 5: Solve for x
x = 991,389,423,518.21/1,560,678.12 - Step 6: Final answer
x = 635,229.91
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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.