Finding the Fourth Proportional to 742,249.08, 1,024,303.80 and 402,717.36
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Solution
The fourth proportional to 742,249.08, 1,024,303.80 and 402,717.36 is: 555,749.99
Step by Step Solution
- Step 1: Write the proportion equation
742,249.08 : 1,024,303.80 = 402,717.36 : x - Step 2: Convert to fraction form
742,249.08/1,024,303.80 = 402,717.36/x - Step 3: Cross multiply
742,249.08x = 1,024,303.80 × 402,717.36 - Step 4: Simplify right side
742,249.08x = 412,504,922,173.97 - Step 5: Solve for x
x = 412,504,922,173.97/742,249.08 - Step 6: Final answer
x = 555,749.99
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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.