Finding the Fourth Proportional to 620,237.36, 856,020.13 and 378,659.98
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Solution
The fourth proportional to 620,237.36, 856,020.13 and 378,659.98 is: 522,607.29
Step by Step Solution
- Step 1: Write the proportion equation
620,237.36 : 856,020.13 = 378,659.98 : x - Step 2: Convert to fraction form
620,237.36/856,020.13 = 378,659.98/x - Step 3: Cross multiply
620,237.36x = 856,020.13 × 378,659.98 - Step 4: Simplify right side
620,237.36x = 324,140,565,305.40 - Step 5: Solve for x
x = 324,140,565,305.40/620,237.36 - Step 6: Final answer
x = 522,607.29
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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.