Finding the Fourth Proportional to 740,242.56, 1,021,350.96 and 434,347.68
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Solution
The fourth proportional to 740,242.56, 1,021,350.96 and 434,347.68 is: 599,291.97
Step by Step Solution
- Step 1: Write the proportion equation
740,242.56 : 1,021,350.96 = 434,347.68 : x - Step 2: Convert to fraction form
740,242.56/1,021,350.96 = 434,347.68/x - Step 3: Cross multiply
740,242.56x = 1,021,350.96 × 434,347.68 - Step 4: Simplify right side
740,242.56x = 443,621,419,941.77 - Step 5: Solve for x
x = 443,621,419,941.77/740,242.56 - Step 6: Final answer
x = 599,291.97
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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.