Finding the Fourth Proportional to 879,394.70, 1,319,372.26 and 393,001.60
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Solution
The fourth proportional to 879,394.70, 1,319,372.26 and 393,001.60 is: 589,627.63
Step by Step Solution
- Step 1: Write the proportion equation
879,394.70 : 1,319,372.26 = 393,001.60 : x - Step 2: Convert to fraction form
879,394.70/1,319,372.26 = 393,001.60/x - Step 3: Cross multiply
879,394.70x = 1,319,372.26 × 393,001.60 - Step 4: Simplify right side
879,394.70x = 518,515,409,175.62 - Step 5: Solve for x
x = 518,515,409,175.62/879,394.70 - Step 6: Final answer
x = 589,627.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.