Finding the Fourth Proportional to 892,878.40, 1,232,182.88 and 484,981.12
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Solution
The fourth proportional to 892,878.40, 1,232,182.88 and 484,981.12 is: 669,279.75
Step by Step Solution
- Step 1: Write the proportion equation
892,878.40 : 1,232,182.88 = 484,981.12 : x - Step 2: Convert to fraction form
892,878.40/1,232,182.88 = 484,981.12/x - Step 3: Cross multiply
892,878.40x = 1,232,182.88 × 484,981.12 - Step 4: Simplify right side
892,878.40x = 597,585,433,187.23 - Step 5: Solve for x
x = 597,585,433,187.23/892,878.40 - Step 6: Final answer
x = 669,279.75
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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.