Finding the Fourth Proportional to 829,294.42, 1,144,779.41 and 557,519.94
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Solution
The fourth proportional to 829,294.42, 1,144,779.41 and 557,519.94 is: 769,614.91
Step by Step Solution
- Step 1: Write the proportion equation
829,294.42 : 1,144,779.41 = 557,519.94 : x - Step 2: Convert to fraction form
829,294.42/1,144,779.41 = 557,519.94/x - Step 3: Cross multiply
829,294.42x = 1,144,779.41 × 557,519.94 - Step 4: Simplify right side
829,294.42x = 638,237,347,976.44 - Step 5: Solve for x
x = 638,237,347,976.44/829,294.42 - Step 6: Final answer
x = 769,614.91
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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.