Finding the Fourth Proportional to 489,319.80, 733,979.70 and 472,212.60
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Solution
The fourth proportional to 489,319.80, 733,979.70 and 472,212.60 is: 708,318.90
Step by Step Solution
- Step 1: Write the proportion equation
489,319.80 : 733,979.70 = 472,212.60 : x - Step 2: Convert to fraction form
489,319.80/733,979.70 = 472,212.60/x - Step 3: Cross multiply
489,319.80x = 733,979.70 × 472,212.60 - Step 4: Simplify right side
489,319.80x = 346,594,462,484.22 - Step 5: Solve for x
x = 346,594,462,484.22/489,319.80 - Step 6: Final answer
x = 708,318.90
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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.