Finding the Fourth Proportional to 401,779.10, 602,668.65 and 313,098.99
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Solution
The fourth proportional to 401,779.10, 602,668.65 and 313,098.99 is: 469,648.48
Step by Step Solution
- Step 1: Write the proportion equation
401,779.10 : 602,668.65 = 313,098.99 : x - Step 2: Convert to fraction form
401,779.10/602,668.65 = 313,098.99/x - Step 3: Cross multiply
401,779.10x = 602,668.65 × 313,098.99 - Step 4: Simplify right side
401,779.10x = 188,694,944,533.78 - Step 5: Solve for x
x = 188,694,944,533.78/401,779.10 - Step 6: Final answer
x = 469,648.48
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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.