Finding the Fourth Proportional to 489,468.04, 675,467.76 and 285,659.74
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Solution
The fourth proportional to 489,468.04, 675,467.76 and 285,659.74 is: 394,211.53
Step by Step Solution
- Step 1: Write the proportion equation
489,468.04 : 675,467.76 = 285,659.74 : x - Step 2: Convert to fraction form
489,468.04/675,467.76 = 285,659.74/x - Step 3: Cross multiply
489,468.04x = 675,467.76 × 285,659.74 - Step 4: Simplify right side
489,468.04x = 192,953,944,699.98 - Step 5: Solve for x
x = 192,953,944,699.98/489,468.04 - Step 6: Final answer
x = 394,211.53
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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.