Finding the Fourth Proportional to 739,408.24, 1,020,378.90 and 399,875.68
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Solution
The fourth proportional to 739,408.24, 1,020,378.90 and 399,875.68 is: 551,826.02
Step by Step Solution
- Step 1: Write the proportion equation
739,408.24 : 1,020,378.90 = 399,875.68 : x - Step 2: Convert to fraction form
739,408.24/1,020,378.90 = 399,875.68/x - Step 3: Cross multiply
739,408.24x = 1,020,378.90 × 399,875.68 - Step 4: Simplify right side
739,408.24x = 408,024,706,495.15 - Step 5: Solve for x
x = 408,024,706,495.15/739,408.24 - Step 6: Final answer
x = 551,826.02
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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.