Finding the Fourth Proportional to 785,194.20, 1,083,573.18 and 445,668.12
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Solution
The fourth proportional to 785,194.20, 1,083,573.18 and 445,668.12 is: 615,024.95
Step by Step Solution
- Step 1: Write the proportion equation
785,194.20 : 1,083,573.18 = 445,668.12 : x - Step 2: Convert to fraction form
785,194.20/1,083,573.18 = 445,668.12/x - Step 3: Cross multiply
785,194.20x = 1,083,573.18 × 445,668.12 - Step 4: Simplify right side
785,194.20x = 482,914,022,013.02 - Step 5: Solve for x
x = 482,914,022,013.02/785,194.20 - Step 6: Final answer
x = 615,024.95
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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.