Finding the Fourth Proportional to 861,716.76, 1,292,575.47 and 860,471.54
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Solution
The fourth proportional to 861,716.76, 1,292,575.47 and 860,471.54 is: 1,290,707.63
Step by Step Solution
- Step 1: Write the proportion equation
861,716.76 : 1,292,575.47 = 860,471.54 : x - Step 2: Convert to fraction form
861,716.76/1,292,575.47 = 860,471.54/x - Step 3: Cross multiply
861,716.76x = 1,292,575.47 × 860,471.54 - Step 4: Simplify right side
861,716.76x = 1,112,224,400,394.64 - Step 5: Solve for x
x = 1,112,224,400,394.64/861,716.76 - Step 6: Final answer
x = 1,290,707.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.