Finding the Fourth Proportional to 827,775.63, 1,142,340.48 and 505,440.99
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Solution
The fourth proportional to 827,775.63, 1,142,340.48 and 505,440.99 is: 697,514.74
Step by Step Solution
- Step 1: Write the proportion equation
827,775.63 : 1,142,340.48 = 505,440.99 : x - Step 2: Convert to fraction form
827,775.63/1,142,340.48 = 505,440.99/x - Step 3: Cross multiply
827,775.63x = 1,142,340.48 × 505,440.99 - Step 4: Simplify right side
827,775.63x = 577,385,703,128.28 - Step 5: Solve for x
x = 577,385,703,128.28/827,775.63 - Step 6: Final answer
x = 697,514.74
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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.