Finding the Fourth Proportional to 626,991.84, 865,567.08 and 397,783.44
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Solution
The fourth proportional to 626,991.84, 865,567.08 and 397,783.44 is: 549,143.11
Step by Step Solution
- Step 1: Write the proportion equation
626,991.84 : 865,567.08 = 397,783.44 : x - Step 2: Convert to fraction form
626,991.84/865,567.08 = 397,783.44/x - Step 3: Cross multiply
626,991.84x = 865,567.08 × 397,783.44 - Step 4: Simplify right side
626,991.84x = 344,308,250,633.16 - Step 5: Solve for x
x = 344,308,250,633.16/626,991.84 - Step 6: Final answer
x = 549,143.11
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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.