Finding the Fourth Proportional to 984,538.20, 1,358,691.18 and 554,794.68
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Solution
The fourth proportional to 984,538.20, 1,358,691.18 and 554,794.68 is: 765,632.70
Step by Step Solution
- Step 1: Write the proportion equation
984,538.20 : 1,358,691.18 = 554,794.68 : x - Step 2: Convert to fraction form
984,538.20/1,358,691.18 = 554,794.68/x - Step 3: Cross multiply
984,538.20x = 1,358,691.18 × 554,794.68 - Step 4: Simplify right side
984,538.20x = 753,794,638,426.92 - Step 5: Solve for x
x = 753,794,638,426.92/984,538.20 - Step 6: Final answer
x = 765,632.70
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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.