Finding the Fourth Proportional to 460,378.76, 635,339.94 and 253,655.66
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Solution
The fourth proportional to 460,378.76, 635,339.94 and 253,655.66 is: 350,054.32
Step by Step Solution
- Step 1: Write the proportion equation
460,378.76 : 635,339.94 = 253,655.66 : x - Step 2: Convert to fraction form
460,378.76/635,339.94 = 253,655.66/x - Step 3: Cross multiply
460,378.76x = 635,339.94 × 253,655.66 - Step 4: Simplify right side
460,378.76x = 161,157,571,805.06 - Step 5: Solve for x
x = 161,157,571,805.06/460,378.76 - Step 6: Final answer
x = 350,054.32
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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.