Finding the Fourth Proportional to 758,073.36, 1,046,140.56 and 418,543.68
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Solution
The fourth proportional to 758,073.36, 1,046,140.56 and 418,543.68 is: 577,589.90
Step by Step Solution
- Step 1: Write the proportion equation
758,073.36 : 1,046,140.56 = 418,543.68 : x - Step 2: Convert to fraction form
758,073.36/1,046,140.56 = 418,543.68/x - Step 3: Cross multiply
758,073.36x = 1,046,140.56 × 418,543.68 - Step 4: Simplify right side
758,073.36x = 437,855,519,779.66 - Step 5: Solve for x
x = 437,855,519,779.66/758,073.36 - Step 6: Final answer
x = 577,589.90
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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.