Finding the Fourth Proportional to 970,908.36, 1,340,428.23 and 863,180.84
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Solution
The fourth proportional to 970,908.36, 1,340,428.23 and 863,180.84 is: 1,191,700.49
Step by Step Solution
- Step 1: Write the proportion equation
970,908.36 : 1,340,428.23 = 863,180.84 : x - Step 2: Convert to fraction form
970,908.36/1,340,428.23 = 863,180.84/x - Step 3: Cross multiply
970,908.36x = 1,340,428.23 × 863,180.84 - Step 4: Simplify right side
970,908.36x = 1,157,031,965,531.11 - Step 5: Solve for x
x = 1,157,031,965,531.11/970,908.36 - Step 6: Final answer
x = 1,191,700.49
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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.