Finding the Fourth Proportional to 717,748.80, 1,076,536.80 and 296,980.80
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Solution
The fourth proportional to 717,748.80, 1,076,536.80 and 296,980.80 is: 445,435.45
Step by Step Solution
- Step 1: Write the proportion equation
717,748.80 : 1,076,536.80 = 296,980.80 : x - Step 2: Convert to fraction form
717,748.80/1,076,536.80 = 296,980.80/x - Step 3: Cross multiply
717,748.80x = 1,076,536.80 × 296,980.80 - Step 4: Simplify right side
717,748.80x = 319,710,760,093.44 - Step 5: Solve for x
x = 319,710,760,093.44/717,748.80 - Step 6: Final answer
x = 445,435.45
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1.5x scale
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.