Finding the Fourth Proportional to 702,690.89, 969,713.75 and 380,400.99
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Solution
The fourth proportional to 702,690.89, 969,713.75 and 380,400.99 is: 524,953.54
Step by Step Solution
- Step 1: Write the proportion equation
702,690.89 : 969,713.75 = 380,400.99 : x - Step 2: Convert to fraction form
702,690.89/969,713.75 = 380,400.99/x - Step 3: Cross multiply
702,690.89x = 969,713.75 × 380,400.99 - Step 4: Simplify right side
702,690.89x = 368,880,066,404.69 - Step 5: Solve for x
x = 368,880,066,404.69/702,690.89 - Step 6: Final answer
x = 524,953.54
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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.