Finding the Fourth Proportional to 766,297.12, 1,057,489.56 and 444,193.84
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Solution
The fourth proportional to 766,297.12, 1,057,489.56 and 444,193.84 is: 612,987.23
Step by Step Solution
- Step 1: Write the proportion equation
766,297.12 : 1,057,489.56 = 444,193.84 : x - Step 2: Convert to fraction form
766,297.12/1,057,489.56 = 444,193.84/x - Step 3: Cross multiply
766,297.12x = 1,057,489.56 × 444,193.84 - Step 4: Simplify right side
766,297.12x = 469,730,348,416.31 - Step 5: Solve for x
x = 469,730,348,416.31/766,297.12 - Step 6: Final answer
x = 612,987.23
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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.