Finding the Fourth Proportional to 753,430.24, 1,130,021.12 and 247,997.80
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Solution
The fourth proportional to 753,430.24, 1,130,021.12 and 247,997.80 is: 371,955.81
Step by Step Solution
- Step 1: Write the proportion equation
753,430.24 : 1,130,021.12 = 247,997.80 : x - Step 2: Convert to fraction form
753,430.24/1,130,021.12 = 247,997.80/x - Step 3: Cross multiply
753,430.24x = 1,130,021.12 × 247,997.80 - Step 4: Simplify right side
753,430.24x = 280,242,751,713.54 - Step 5: Solve for x
x = 280,242,751,713.54/753,430.24 - Step 6: Final answer
x = 371,955.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.