Finding the Fourth Proportional to 785,361.52, 1,083,769.14 and 479,948.68
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Solution
The fourth proportional to 785,361.52, 1,083,769.14 and 479,948.68 is: 662,310.99
Step by Step Solution
- Step 1: Write the proportion equation
785,361.52 : 1,083,769.14 = 479,948.68 : x - Step 2: Convert to fraction form
785,361.52/1,083,769.14 = 479,948.68/x - Step 3: Cross multiply
785,361.52x = 1,083,769.14 × 479,948.68 - Step 4: Simplify right side
785,361.52x = 520,153,568,167.74 - Step 5: Solve for x
x = 520,153,568,167.74/785,361.52 - Step 6: Final answer
x = 662,310.99
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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.