Finding the Fourth Proportional to 782,688.15, 1,173,755.61 and 372,309.08
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Solution
The fourth proportional to 782,688.15, 1,173,755.61 and 372,309.08 is: 558,332.03
Step by Step Solution
- Step 1: Write the proportion equation
782,688.15 : 1,173,755.61 = 372,309.08 : x - Step 2: Convert to fraction form
782,688.15/1,173,755.61 = 372,309.08/x - Step 3: Cross multiply
782,688.15x = 1,173,755.61 × 372,309.08 - Step 4: Simplify right side
782,688.15x = 436,999,865,435.16 - Step 5: Solve for x
x = 436,999,865,435.16/782,688.15 - Step 6: Final answer
x = 558,332.03
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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.