Finding the Fourth Proportional to 879,784.12, 1,319,507.70 and 374,623.48
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Solution
The fourth proportional to 879,784.12, 1,319,507.70 and 374,623.48 is: 561,863.48
Step by Step Solution
- Step 1: Write the proportion equation
879,784.12 : 1,319,507.70 = 374,623.48 : x - Step 2: Convert to fraction form
879,784.12/1,319,507.70 = 374,623.48/x - Step 3: Cross multiply
879,784.12x = 1,319,507.70 × 374,623.48 - Step 4: Simplify right side
879,784.12x = 494,318,566,460.80 - Step 5: Solve for x
x = 494,318,566,460.80/879,784.12 - Step 6: Final answer
x = 561,863.48
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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.