Finding the Fourth Proportional to 890,758.80, 1,336,235.40 and 862,765.20
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Solution
The fourth proportional to 890,758.80, 1,336,235.40 and 862,765.20 is: 1,294,241.95
Step by Step Solution
- Step 1: Write the proportion equation
890,758.80 : 1,336,235.40 = 862,765.20 : x - Step 2: Convert to fraction form
890,758.80/1,336,235.40 = 862,765.20/x - Step 3: Cross multiply
890,758.80x = 1,336,235.40 × 862,765.20 - Step 4: Simplify right side
890,758.80x = 1,152,857,402,128.08 - Step 5: Solve for x
x = 1,152,857,402,128.08/890,758.80 - Step 6: Final answer
x = 1,294,241.95
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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.