Finding the Fourth Proportional to 673,782.84, 929,714.40 and 387,247.60
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Solution
The fourth proportional to 673,782.84, 929,714.40 and 387,247.60 is: 534,340.81
Step by Step Solution
- Step 1: Write the proportion equation
673,782.84 : 929,714.40 = 387,247.60 : x - Step 2: Convert to fraction form
673,782.84/929,714.40 = 387,247.60/x - Step 3: Cross multiply
673,782.84x = 929,714.40 × 387,247.60 - Step 4: Simplify right side
673,782.84x = 360,029,670,085.44 - Step 5: Solve for x
x = 360,029,670,085.44/673,782.84 - Step 6: Final answer
x = 534,340.81
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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.