Finding the Fourth Proportional to 626,763.44, 864,948.12 and 372,115.28
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Solution
The fourth proportional to 626,763.44, 864,948.12 and 372,115.28 is: 513,527.74
Step by Step Solution
- Step 1: Write the proportion equation
626,763.44 : 864,948.12 = 372,115.28 : x - Step 2: Convert to fraction form
626,763.44/864,948.12 = 372,115.28/x - Step 3: Cross multiply
626,763.44x = 864,948.12 × 372,115.28 - Step 4: Simplify right side
626,763.44x = 321,860,411,859.27 - Step 5: Solve for x
x = 321,860,411,859.27/626,763.44 - Step 6: Final answer
x = 513,527.74
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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.