Finding the Fourth Proportional to 665,869.12, 999,514.46 and 286,976.84
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Solution
The fourth proportional to 665,869.12, 999,514.46 and 286,976.84 is: 430,771.59
Step by Step Solution
- Step 1: Write the proportion equation
665,869.12 : 999,514.46 = 286,976.84 : x - Step 2: Convert to fraction form
665,869.12/999,514.46 = 286,976.84/x - Step 3: Cross multiply
665,869.12x = 999,514.46 × 286,976.84 - Step 4: Simplify right side
665,869.12x = 286,837,501,265.11 - Step 5: Solve for x
x = 286,837,501,265.11/665,869.12 - Step 6: Final answer
x = 430,771.59
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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.