Finding the Fourth Proportional to 820,748.64, 1,130,125.84 and 743,766.98
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Solution
The fourth proportional to 820,748.64, 1,130,125.84 and 743,766.98 is: 1,024,126.32
Step by Step Solution
- Step 1: Write the proportion equation
820,748.64 : 1,130,125.84 = 743,766.98 : x - Step 2: Convert to fraction form
820,748.64/1,130,125.84 = 743,766.98/x - Step 3: Cross multiply
820,748.64x = 1,130,125.84 × 743,766.98 - Step 4: Simplify right side
820,748.64x = 840,550,281,832.76 - Step 5: Solve for x
x = 840,550,281,832.76/820,748.64 - Step 6: Final answer
x = 1,024,126.32
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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.