Finding the Fourth Proportional to 740,117.08, 1,021,369.93 and 434,198.67
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Solution
The fourth proportional to 740,117.08, 1,021,369.93 and 434,198.67 is: 599,199.07
Step by Step Solution
- Step 1: Write the proportion equation
740,117.08 : 1,021,369.93 = 434,198.67 : x - Step 2: Convert to fraction form
740,117.08/1,021,369.93 = 434,198.67/x - Step 3: Cross multiply
740,117.08x = 1,021,369.93 × 434,198.67 - Step 4: Simplify right side
740,117.08x = 443,477,465,183.99 - Step 5: Solve for x
x = 443,477,465,183.99/740,117.08 - Step 6: Final answer
x = 599,199.07
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1.5x scale
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.