Finding the Fourth Proportional to 875,565.11, 1,208,191.29 and 646,247.63
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Solution
The fourth proportional to 875,565.11, 1,208,191.29 and 646,247.63 is: 891,756.36
Step by Step Solution
- Step 1: Write the proportion equation
875,565.11 : 1,208,191.29 = 646,247.63 : x - Step 2: Convert to fraction form
875,565.11/1,208,191.29 = 646,247.63/x - Step 3: Cross multiply
875,565.11x = 1,208,191.29 × 646,247.63 - Step 4: Simplify right side
875,565.11x = 780,790,757,749.14 - Step 5: Solve for x
x = 780,790,757,749.14/875,565.11 - Step 6: Final answer
x = 891,756.36
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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.