Finding the Fourth Proportional to 660,488.38, 911,752.98 and 445,919.08
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Solution
The fourth proportional to 660,488.38, 911,752.98 and 445,919.08 is: 615,556.70
Step by Step Solution
- Step 1: Write the proportion equation
660,488.38 : 911,752.98 = 445,919.08 : x - Step 2: Convert to fraction form
660,488.38/911,752.98 = 445,919.08/x - Step 3: Cross multiply
660,488.38x = 911,752.98 × 445,919.08 - Step 4: Simplify right side
660,488.38x = 406,568,050,028.86 - Step 5: Solve for x
x = 406,568,050,028.86/660,488.38 - Step 6: Final answer
x = 615,556.70
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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.