Finding the Fourth Proportional to 529,781.68, 721,317.50 and 528,100.12
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Solution
The fourth proportional to 529,781.68, 721,317.50 and 528,100.12 is: 719,027.99
Step by Step Solution
- Step 1: Write the proportion equation
529,781.68 : 721,317.50 = 528,100.12 : x - Step 2: Convert to fraction form
529,781.68/721,317.50 = 528,100.12/x - Step 3: Cross multiply
529,781.68x = 721,317.50 × 528,100.12 - Step 4: Simplify right side
529,781.68x = 380,927,858,308.10 - Step 5: Solve for x
x = 380,927,858,308.10/529,781.68 - Step 6: Final answer
x = 719,027.99
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.