Finding the Fourth Proportional to 681,763.36, 940,790.96 and 375,823.84
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Solution
The fourth proportional to 681,763.36, 940,790.96 and 375,823.84 is: 518,613.48
Step by Step Solution
- Step 1: Write the proportion equation
681,763.36 : 940,790.96 = 375,823.84 : x - Step 2: Convert to fraction form
681,763.36/940,790.96 = 375,823.84/x - Step 3: Cross multiply
681,763.36x = 940,790.96 × 375,823.84 - Step 4: Simplify right side
681,763.36x = 353,571,671,224.49 - Step 5: Solve for x
x = 353,571,671,224.49/681,763.36 - Step 6: Final answer
x = 518,613.48
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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.