Finding the Fourth Proportional to 912,987.91, 1,369,214.29 and 343,958.46
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Solution
The fourth proportional to 912,987.91, 1,369,214.29 and 343,958.46 is: 515,836.88
Step by Step Solution
- Step 1: Write the proportion equation
912,987.91 : 1,369,214.29 = 343,958.46 : x - Step 2: Convert to fraction form
912,987.91/1,369,214.29 = 343,958.46/x - Step 3: Cross multiply
912,987.91x = 1,369,214.29 × 343,958.46 - Step 4: Simplify right side
912,987.91x = 470,952,838,598.39 - Step 5: Solve for x
x = 470,952,838,598.39/912,987.91 - Step 6: Final answer
x = 515,836.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.