Finding the Fourth Proportional to 818,759.52, 1,129,919.36 and 474,606.72
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Solution
The fourth proportional to 818,759.52, 1,129,919.36 and 474,606.72 is: 654,975.37
Step by Step Solution
- Step 1: Write the proportion equation
818,759.52 : 1,129,919.36 = 474,606.72 : x - Step 2: Convert to fraction form
818,759.52/1,129,919.36 = 474,606.72/x - Step 3: Cross multiply
818,759.52x = 1,129,919.36 × 474,606.72 - Step 4: Simplify right side
818,759.52x = 536,267,321,314.10 - Step 5: Solve for x
x = 536,267,321,314.10/818,759.52 - Step 6: Final answer
x = 654,975.37
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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.