Finding the Fourth Proportional to 793,415.80, 1,189,880.70 and 260,813.80
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Solution
The fourth proportional to 793,415.80, 1,189,880.70 and 260,813.80 is: 391,140.82
Step by Step Solution
- Step 1: Write the proportion equation
793,415.80 : 1,189,880.70 = 260,813.80 : x - Step 2: Convert to fraction form
793,415.80/1,189,880.70 = 260,813.80/x - Step 3: Cross multiply
793,415.80x = 1,189,880.70 × 260,813.80 - Step 4: Simplify right side
793,415.80x = 310,337,306,913.66 - Step 5: Solve for x
x = 310,337,306,913.66/793,415.80 - Step 6: Final answer
x = 391,140.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.