Finding the Fourth Proportional to 879,129.80, 1,318,565.10 and 248,107.40
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Solution
The fourth proportional to 879,129.80, 1,318,565.10 and 248,107.40 is: 372,124.52
Step by Step Solution
- Step 1: Write the proportion equation
879,129.80 : 1,318,565.10 = 248,107.40 : x - Step 2: Convert to fraction form
879,129.80/1,318,565.10 = 248,107.40/x - Step 3: Cross multiply
879,129.80x = 1,318,565.10 × 248,107.40 - Step 4: Simplify right side
879,129.80x = 327,145,758,691.74 - Step 5: Solve for x
x = 327,145,758,691.74/879,129.80 - Step 6: Final answer
x = 372,124.52
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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.