Finding the Fourth Proportional to 479,557.35, 661,805.18 and 261,778.95
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Solution
The fourth proportional to 479,557.35, 661,805.18 and 261,778.95 is: 361,263.70
Step by Step Solution
- Step 1: Write the proportion equation
479,557.35 : 661,805.18 = 261,778.95 : x - Step 2: Convert to fraction form
479,557.35/661,805.18 = 261,778.95/x - Step 3: Cross multiply
479,557.35x = 661,805.18 × 261,778.95 - Step 4: Simplify right side
479,557.35x = 173,246,663,816.07 - Step 5: Solve for x
x = 173,246,663,816.07/479,557.35 - Step 6: Final answer
x = 361,263.70
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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.