Finding the Fourth Proportional to 490,801.70, 736,202.55 and 455,809.70
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Solution
The fourth proportional to 490,801.70, 736,202.55 and 455,809.70 is: 683,714.55
Step by Step Solution
- Step 1: Write the proportion equation
490,801.70 : 736,202.55 = 455,809.70 : x - Step 2: Convert to fraction form
490,801.70/736,202.55 = 455,809.70/x - Step 3: Cross multiply
490,801.70x = 736,202.55 × 455,809.70 - Step 4: Simplify right side
490,801.70x = 335,568,263,454.74 - Step 5: Solve for x
x = 335,568,263,454.74/490,801.70 - Step 6: Final answer
x = 683,714.55
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Similar ratio
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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.