Finding the Fourth Proportional to 521,657.70, 782,486.55 and 403,559.70
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Solution
The fourth proportional to 521,657.70, 782,486.55 and 403,559.70 is: 605,339.55
Step by Step Solution
- Step 1: Write the proportion equation
521,657.70 : 782,486.55 = 403,559.70 : x - Step 2: Convert to fraction form
521,657.70/782,486.55 = 403,559.70/x - Step 3: Cross multiply
521,657.70x = 782,486.55 × 403,559.70 - Step 4: Simplify right side
521,657.70x = 315,780,037,372.04 - Step 5: Solve for x
x = 315,780,037,372.04/521,657.70 - Step 6: Final answer
x = 605,339.55
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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.