Finding the Fourth Proportional to 684,751.20, 1,027,126.80 and 517,445.70
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Solution
The fourth proportional to 684,751.20, 1,027,126.80 and 517,445.70 is: 776,168.55
Step by Step Solution
- Step 1: Write the proportion equation
684,751.20 : 1,027,126.80 = 517,445.70 : x - Step 2: Convert to fraction form
684,751.20/1,027,126.80 = 517,445.70/x - Step 3: Cross multiply
684,751.20x = 1,027,126.80 × 517,445.70 - Step 4: Simplify right side
684,751.20x = 531,482,346,014.76 - Step 5: Solve for x
x = 531,482,346,014.76/684,751.20 - Step 6: Final answer
x = 776,168.55
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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.