Finding the Fourth Proportional to 890,113.62, 1,228,355.35 and 482,225.82
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Solution
The fourth proportional to 890,113.62, 1,228,355.35 and 482,225.82 is: 665,470.85
Step by Step Solution
- Step 1: Write the proportion equation
890,113.62 : 1,228,355.35 = 482,225.82 : x - Step 2: Convert to fraction form
890,113.62/1,228,355.35 = 482,225.82/x - Step 3: Cross multiply
890,113.62x = 1,228,355.35 × 482,225.82 - Step 4: Simplify right side
890,113.62x = 592,344,665,905.14 - Step 5: Solve for x
x = 592,344,665,905.14/890,113.62 - Step 6: Final answer
x = 665,470.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.