Finding the Fourth Proportional to 785,229.70, 1,083,622.18 and 445,703.62
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Solution
The fourth proportional to 785,229.70, 1,083,622.18 and 445,703.62 is: 615,073.94
Step by Step Solution
- Step 1: Write the proportion equation
785,229.70 : 1,083,622.18 = 445,703.62 : x - Step 2: Convert to fraction form
785,229.70/1,083,622.18 = 445,703.62/x - Step 3: Cross multiply
785,229.70x = 1,083,622.18 × 445,703.62 - Step 4: Simplify right side
785,229.70x = 482,974,328,338.29 - Step 5: Solve for x
x = 482,974,328,338.29/785,229.70 - Step 6: Final answer
x = 615,073.94
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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.