Finding the Fourth Proportional to 929,559.83, 1,393,890.95 and 389,671.09
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Solution
The fourth proportional to 929,559.83, 1,393,890.95 and 389,671.09 is: 584,318.50
Step by Step Solution
- Step 1: Write the proportion equation
929,559.83 : 1,393,890.95 = 389,671.09 : x - Step 2: Convert to fraction form
929,559.83/1,393,890.95 = 389,671.09/x - Step 3: Cross multiply
929,559.83x = 1,393,890.95 × 389,671.09 - Step 4: Simplify right side
929,559.83x = 543,159,000,394.55 - Step 5: Solve for x
x = 543,159,000,394.55/929,559.83 - Step 6: Final answer
x = 584,318.50
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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.