Finding the Fourth Proportional to 695,183.23, 959,129.80 and 389,214.55
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Solution
The fourth proportional to 695,183.23, 959,129.80 and 389,214.55 is: 536,991.20
Step by Step Solution
- Step 1: Write the proportion equation
695,183.23 : 959,129.80 = 389,214.55 : x - Step 2: Convert to fraction form
695,183.23/959,129.80 = 389,214.55/x - Step 3: Cross multiply
695,183.23x = 959,129.80 × 389,214.55 - Step 4: Simplify right side
695,183.23x = 373,307,273,498.59 - Step 5: Solve for x
x = 373,307,273,498.59/695,183.23 - Step 6: Final answer
x = 536,991.20
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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.