Finding the Fourth Proportional to 640,117.23, 883,297.76 and 353,618.88
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Solution
The fourth proportional to 640,117.23, 883,297.76 and 353,618.88 is: 487,958.69
Step by Step Solution
- Step 1: Write the proportion equation
640,117.23 : 883,297.76 = 353,618.88 : x - Step 2: Convert to fraction form
640,117.23/883,297.76 = 353,618.88/x - Step 3: Cross multiply
640,117.23x = 883,297.76 × 353,618.88 - Step 4: Simplify right side
640,117.23x = 312,350,762,829.61 - Step 5: Solve for x
x = 312,350,762,829.61/640,117.23 - Step 6: Final answer
x = 487,958.69
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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.