Finding the Fourth Proportional to 561,984.09, 775,302.84 and 368,438.28
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Solution
The fourth proportional to 561,984.09, 775,302.84 and 368,438.28 is: 508,290.63
Step by Step Solution
- Step 1: Write the proportion equation
561,984.09 : 775,302.84 = 368,438.28 : x - Step 2: Convert to fraction form
561,984.09/775,302.84 = 368,438.28/x - Step 3: Cross multiply
561,984.09x = 775,302.84 × 368,438.28 - Step 4: Simplify right side
561,984.09x = 285,651,244,848.72 - Step 5: Solve for x
x = 285,651,244,848.72/561,984.09 - Step 6: Final answer
x = 508,290.63
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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.