Finding the Fourth Proportional to 632,451.99, 872,784.89 and 345,972.07
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Solution
The fourth proportional to 632,451.99, 872,784.89 and 345,972.07 is: 477,442.09
Step by Step Solution
- Step 1: Write the proportion equation
632,451.99 : 872,784.89 = 345,972.07 : x - Step 2: Convert to fraction form
632,451.99/872,784.89 = 345,972.07/x - Step 3: Cross multiply
632,451.99x = 872,784.89 × 345,972.07 - Step 4: Simplify right side
632,451.99x = 301,959,197,858.87 - Step 5: Solve for x
x = 301,959,197,858.87/632,451.99 - Step 6: Final answer
x = 477,442.09
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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.