Finding the Fourth Proportional to 890,026.49, 1,228,242.47 and 482,128.36
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Solution
The fourth proportional to 890,026.49, 1,228,242.47 and 482,128.36 is: 665,340.35
Step by Step Solution
- Step 1: Write the proportion equation
890,026.49 : 1,228,242.47 = 482,128.36 : x - Step 2: Convert to fraction form
890,026.49/1,228,242.47 = 482,128.36/x - Step 3: Cross multiply
890,026.49x = 1,228,242.47 × 482,128.36 - Step 4: Simplify right side
890,026.49x = 592,170,535,644.24 - Step 5: Solve for x
x = 592,170,535,644.24/890,026.49 - Step 6: Final answer
x = 665,340.35
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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.