Finding the Fourth Proportional to 450,038.59, 620,760.63 and 288,637.99
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Solution
The fourth proportional to 450,038.59, 620,760.63 and 288,637.99 is: 398,132.75
Step by Step Solution
- Step 1: Write the proportion equation
450,038.59 : 620,760.63 = 288,637.99 : x - Step 2: Convert to fraction form
450,038.59/620,760.63 = 288,637.99/x - Step 3: Cross multiply
450,038.59x = 620,760.63 × 288,637.99 - Step 4: Simplify right side
450,038.59x = 179,175,100,514.33 - Step 5: Solve for x
x = 179,175,100,514.33/450,038.59 - Step 6: Final answer
x = 398,132.75
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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.