Finding the Fourth Proportional to 622,390.24, 858,903.68 and 354,135.52
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Solution
The fourth proportional to 622,390.24, 858,903.68 and 354,135.52 is: 488,709.95
Step by Step Solution
- Step 1: Write the proportion equation
622,390.24 : 858,903.68 = 354,135.52 : x - Step 2: Convert to fraction form
622,390.24/858,903.68 = 354,135.52/x - Step 3: Cross multiply
622,390.24x = 858,903.68 × 354,135.52 - Step 4: Simplify right side
622,390.24x = 304,168,301,346.71 - Step 5: Solve for x
x = 304,168,301,346.71/622,390.24 - Step 6: Final answer
x = 488,709.95
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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.