Finding the Fourth Proportional to 970,906.36, 1,340,425.47 and 863,178.84
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Solution
The fourth proportional to 970,906.36, 1,340,425.47 and 863,178.84 is: 1,191,697.73
Step by Step Solution
- Step 1: Write the proportion equation
970,906.36 : 1,340,425.47 = 863,178.84 : x - Step 2: Convert to fraction form
970,906.36/1,340,425.47 = 863,178.84/x - Step 3: Cross multiply
970,906.36x = 1,340,425.47 × 863,178.84 - Step 4: Simplify right side
970,906.36x = 1,157,026,902,301.05 - Step 5: Solve for x
x = 1,157,026,902,301.05/970,906.36 - Step 6: Final answer
x = 1,191,697.73
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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.