Finding the Fourth Proportional to 890,392.80, 1,334,998.80 and 491,224.80
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Solution
The fourth proportional to 890,392.80, 1,334,998.80 and 491,224.80 is: 736,511.48
Step by Step Solution
- Step 1: Write the proportion equation
890,392.80 : 1,334,998.80 = 491,224.80 : x - Step 2: Convert to fraction form
890,392.80/1,334,998.80 = 491,224.80/x - Step 3: Cross multiply
890,392.80x = 1,334,998.80 × 491,224.80 - Step 4: Simplify right side
890,392.80x = 655,784,518,530.24 - Step 5: Solve for x
x = 655,784,518,530.24/890,392.80 - Step 6: Final answer
x = 736,511.48
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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.