Finding the Fourth Proportional to 680,117.49, 937,924.97 and 422,036.31
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Solution
The fourth proportional to 680,117.49, 937,924.97 and 422,036.31 is: 582,014.72
Step by Step Solution
- Step 1: Write the proportion equation
680,117.49 : 937,924.97 = 422,036.31 : x - Step 2: Convert to fraction form
680,117.49/937,924.97 = 422,036.31/x - Step 3: Cross multiply
680,117.49x = 937,924.97 × 422,036.31 - Step 4: Simplify right side
680,117.49x = 395,838,391,285.48 - Step 5: Solve for x
x = 395,838,391,285.48/680,117.49 - Step 6: Final answer
x = 582,014.72
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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.