Finding the Fourth Proportional to 620,267.76, 855,917.28 and 375,344.28
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Solution
The fourth proportional to 620,267.76, 855,917.28 and 375,344.28 is: 517,943.50
Step by Step Solution
- Step 1: Write the proportion equation
620,267.76 : 855,917.28 = 375,344.28 : x - Step 2: Convert to fraction form
620,267.76/855,917.28 = 375,344.28/x - Step 3: Cross multiply
620,267.76x = 855,917.28 × 375,344.28 - Step 4: Simplify right side
620,267.76x = 321,263,655,201.16 - Step 5: Solve for x
x = 321,263,655,201.16/620,267.76 - Step 6: Final answer
x = 517,943.50
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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.