Finding the Fourth Proportional to 813,631, 1,122,810.72 and 451,053.94
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Solution
The fourth proportional to 813,631, 1,122,810.72 and 451,053.94 is: 622,454.40
Step by Step Solution
- Step 1: Write the proportion equation
813,631 : 1,122,810.72 = 451,053.94 : x - Step 2: Convert to fraction form
813,631/1,122,810.72 = 451,053.94/x - Step 3: Cross multiply
813,631x = 1,122,810.72 × 451,053.94 - Step 4: Simplify right side
813,631x = 506,448,199,130.24 - Step 5: Solve for x
x = 506,448,199,130.24/813,631 - Step 6: Final answer
x = 622,454.40
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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.