Finding the Fourth Proportional to 642,649.80, 963,537.30 and 305,851.80
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Solution
The fourth proportional to 642,649.80, 963,537.30 and 305,851.80 is: 458,569.53
Step by Step Solution
- Step 1: Write the proportion equation
642,649.80 : 963,537.30 = 305,851.80 : x - Step 2: Convert to fraction form
642,649.80/963,537.30 = 305,851.80/x - Step 3: Cross multiply
642,649.80x = 963,537.30 × 305,851.80 - Step 4: Simplify right side
642,649.80x = 294,699,617,572.14 - Step 5: Solve for x
x = 294,699,617,572.14/642,649.80 - Step 6: Final answer
x = 458,569.53
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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.