Finding the Fourth Proportional to 979,393.26, 1,351,565.51 and 543,811.55
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Solution
The fourth proportional to 979,393.26, 1,351,565.51 and 543,811.55 is: 750,461.50
Step by Step Solution
- Step 1: Write the proportion equation
979,393.26 : 1,351,565.51 = 543,811.55 : x - Step 2: Convert to fraction form
979,393.26/1,351,565.51 = 543,811.55/x - Step 3: Cross multiply
979,393.26x = 1,351,565.51 × 543,811.55 - Step 4: Simplify right side
979,393.26x = 734,996,934,919.64 - Step 5: Solve for x
x = 734,996,934,919.64/979,393.26 - Step 6: Final answer
x = 750,461.50
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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.