Finding the Fourth Proportional to 489,699.09, 675,332.91 and 326,449.26
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Solution
The fourth proportional to 489,699.09, 675,332.91 and 326,449.26 is: 450,198.77
Step by Step Solution
- Step 1: Write the proportion equation
489,699.09 : 675,332.91 = 326,449.26 : x - Step 2: Convert to fraction form
489,699.09/675,332.91 = 326,449.26/x - Step 3: Cross multiply
489,699.09x = 675,332.91 × 326,449.26 - Step 4: Simplify right side
489,699.09x = 220,461,928,723.15 - Step 5: Solve for x
x = 220,461,928,723.15/489,699.09 - Step 6: Final answer
x = 450,198.77
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1.5x scale
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.