Finding the Fourth Proportional to 766,638.08, 1,057,967.51 and 422,486.34
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Solution
The fourth proportional to 766,638.08, 1,057,967.51 and 422,486.34 is: 583,034.99
Step by Step Solution
- Step 1: Write the proportion equation
766,638.08 : 1,057,967.51 = 422,486.34 : x - Step 2: Convert to fraction form
766,638.08/1,057,967.51 = 422,486.34/x - Step 3: Cross multiply
766,638.08x = 1,057,967.51 × 422,486.34 - Step 4: Simplify right side
766,638.08x = 446,976,819,026.38 - Step 5: Solve for x
x = 446,976,819,026.38/766,638.08 - Step 6: Final answer
x = 583,034.99
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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.