Finding the Fourth Proportional to 804,811.20, 1,110,639.13 and 442,258.41
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Solution
The fourth proportional to 804,811.20, 1,110,639.13 and 442,258.41 is: 610,316.43
Step by Step Solution
- Step 1: Write the proportion equation
804,811.20 : 1,110,639.13 = 442,258.41 : x - Step 2: Convert to fraction form
804,811.20/1,110,639.13 = 442,258.41/x - Step 3: Cross multiply
804,811.20x = 1,110,639.13 × 442,258.41 - Step 4: Simplify right side
804,811.20x = 491,189,495,717.58 - Step 5: Solve for x
x = 491,189,495,717.58/804,811.20 - Step 6: Final answer
x = 610,316.43
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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.