Finding the Fourth Proportional to 1,273,910.08, 1,911,115.68 and 420,947.32
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Solution
The fourth proportional to 1,273,910.08, 1,911,115.68 and 420,947.32 is: 631,503.77
Step by Step Solution
- Step 1: Write the proportion equation
1,273,910.08 : 1,911,115.68 = 420,947.32 : x - Step 2: Convert to fraction form
1,273,910.08/1,911,115.68 = 420,947.32/x - Step 3: Cross multiply
1,273,910.08x = 1,911,115.68 × 420,947.32 - Step 4: Simplify right side
1,273,910.08x = 804,479,023,705.98 - Step 5: Solve for x
x = 804,479,023,705.98/1,273,910.08 - Step 6: Final answer
x = 631,503.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.