Finding the Fourth Proportional to 802,387.80, 1,107,408.75 and 496,562.70
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Solution
The fourth proportional to 802,387.80, 1,107,408.75 and 496,562.70 is: 685,326.82
Step by Step Solution
- Step 1: Write the proportion equation
802,387.80 : 1,107,408.75 = 496,562.70 : x - Step 2: Convert to fraction form
802,387.80/1,107,408.75 = 496,562.70/x - Step 3: Cross multiply
802,387.80x = 1,107,408.75 × 496,562.70 - Step 4: Simplify right side
802,387.80x = 549,897,878,903.63 - Step 5: Solve for x
x = 549,897,878,903.63/802,387.80 - Step 6: Final answer
x = 685,326.82
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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.