Finding the Fourth Proportional to 782,756.58, 1,080,184.68 and 438,606.66
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Solution
The fourth proportional to 782,756.58, 1,080,184.68 and 438,606.66 is: 605,266.32
Step by Step Solution
- Step 1: Write the proportion equation
782,756.58 : 1,080,184.68 = 438,606.66 : x - Step 2: Convert to fraction form
782,756.58/1,080,184.68 = 438,606.66/x - Step 3: Cross multiply
782,756.58x = 1,080,184.68 × 438,606.66 - Step 4: Simplify right side
782,756.58x = 473,776,194,677.97 - Step 5: Solve for x
x = 473,776,194,677.97/782,756.58 - Step 6: Final answer
x = 605,266.32
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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.