Finding the Fourth Proportional to 742,183.56, 1,024,215.24 and 402,651.78
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Solution
The fourth proportional to 742,183.56, 1,024,215.24 and 402,651.78 is: 555,660.50
Step by Step Solution
- Step 1: Write the proportion equation
742,183.56 : 1,024,215.24 = 402,651.78 : x - Step 2: Convert to fraction form
742,183.56/1,024,215.24 = 402,651.78/x - Step 3: Cross multiply
742,183.56x = 1,024,215.24 × 402,651.78 - Step 4: Simplify right side
742,183.56x = 412,402,089,489.13 - Step 5: Solve for x
x = 412,402,089,489.13/742,183.56 - Step 6: Final answer
x = 555,660.50
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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.