Finding the Fourth Proportional to 438,321.80, 657,482.70 and 267,079.70
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Solution
The fourth proportional to 438,321.80, 657,482.70 and 267,079.70 is: 400,619.55
Step by Step Solution
- Step 1: Write the proportion equation
438,321.80 : 657,482.70 = 267,079.70 : x - Step 2: Convert to fraction form
438,321.80/657,482.70 = 267,079.70/x - Step 3: Cross multiply
438,321.80x = 657,482.70 × 267,079.70 - Step 4: Simplify right side
438,321.80x = 175,600,282,271.19 - Step 5: Solve for x
x = 175,600,282,271.19/438,321.80 - Step 6: Final answer
x = 400,619.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.