Finding the Fourth Proportional to 1,029,141.75, 1,420,215.62 and 626,733.75
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Solution
The fourth proportional to 1,029,141.75, 1,420,215.62 and 626,733.75 is: 864,892.58
Step by Step Solution
- Step 1: Write the proportion equation
1,029,141.75 : 1,420,215.62 = 626,733.75 : x - Step 2: Convert to fraction form
1,029,141.75/1,420,215.62 = 626,733.75/x - Step 3: Cross multiply
1,029,141.75x = 1,420,215.62 × 626,733.75 - Step 4: Simplify right side
1,029,141.75x = 890,097,058,197.51 - Step 5: Solve for x
x = 890,097,058,197.51/1,029,141.75 - Step 6: Final answer
x = 864,892.58
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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.