Finding the Fourth Proportional to 871,057.13, 1,201,947.36 and 508,397.81
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Solution
The fourth proportional to 871,057.13, 1,201,947.36 and 508,397.81 is: 701,523.91
Step by Step Solution
- Step 1: Write the proportion equation
871,057.13 : 1,201,947.36 = 508,397.81 : x - Step 2: Convert to fraction form
871,057.13/1,201,947.36 = 508,397.81/x - Step 3: Cross multiply
871,057.13x = 1,201,947.36 × 508,397.81 - Step 4: Simplify right side
871,057.13x = 611,067,405,559.28 - Step 5: Solve for x
x = 611,067,405,559.28/871,057.13 - Step 6: Final answer
x = 701,523.91
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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.