Finding the Fourth Proportional to 990,794.16, 1,367,862.72 and 652,246.56
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Solution
The fourth proportional to 990,794.16, 1,367,862.72 and 652,246.56 is: 900,473.37
Step by Step Solution
- Step 1: Write the proportion equation
990,794.16 : 1,367,862.72 = 652,246.56 : x - Step 2: Convert to fraction form
990,794.16/1,367,862.72 = 652,246.56/x - Step 3: Cross multiply
990,794.16x = 1,367,862.72 × 652,246.56 - Step 4: Simplify right side
990,794.16x = 892,183,753,672.24 - Step 5: Solve for x
x = 892,183,753,672.24/990,794.16 - Step 6: Final answer
x = 900,473.37
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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.