Finding the Fourth Proportional to 993,398.05, 1,370,918.58 and 703,528.21
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Solution
The fourth proportional to 993,398.05, 1,370,918.58 and 703,528.21 is: 970,889.66
Step by Step Solution
- Step 1: Write the proportion equation
993,398.05 : 1,370,918.58 = 703,528.21 : x - Step 2: Convert to fraction form
993,398.05/1,370,918.58 = 703,528.21/x - Step 3: Cross multiply
993,398.05x = 1,370,918.58 × 703,528.21 - Step 4: Simplify right side
993,398.05x = 964,479,894,643.14 - Step 5: Solve for x
x = 964,479,894,643.14/993,398.05 - Step 6: Final answer
x = 970,889.66
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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.