Finding the Fourth Proportional to 628,148.39, 866,921.73 and 370,011.99
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Solution
The fourth proportional to 628,148.39, 866,921.73 and 370,011.99 is: 510,661.87
Step by Step Solution
- Step 1: Write the proportion equation
628,148.39 : 866,921.73 = 370,011.99 : x - Step 2: Convert to fraction form
628,148.39/866,921.73 = 370,011.99/x - Step 3: Cross multiply
628,148.39x = 866,921.73 × 370,011.99 - Step 4: Simplify right side
628,148.39x = 320,771,434,491.54 - Step 5: Solve for x
x = 320,771,434,491.54/628,148.39 - Step 6: Final answer
x = 510,661.87
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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.