Finding the Fourth Proportional to 864,811.12, 1,297,454.49 and 415,907.50
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Solution
The fourth proportional to 864,811.12, 1,297,454.49 and 415,907.50 is: 623,975.62
Step by Step Solution
- Step 1: Write the proportion equation
864,811.12 : 1,297,454.49 = 415,907.50 : x - Step 2: Convert to fraction form
864,811.12/1,297,454.49 = 415,907.50/x - Step 3: Cross multiply
864,811.12x = 1,297,454.49 × 415,907.50 - Step 4: Simplify right side
864,811.12x = 539,621,053,299.68 - Step 5: Solve for x
x = 539,621,053,299.68/864,811.12 - Step 6: Final answer
x = 623,975.62
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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.