Finding the Fourth Proportional to 657,798.10, 907,761.36 and 355,992.10
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Solution
The fourth proportional to 657,798.10, 907,761.36 and 355,992.10 is: 491,269.09
Step by Step Solution
- Step 1: Write the proportion equation
657,798.10 : 907,761.36 = 355,992.10 : x - Step 2: Convert to fraction form
657,798.10/907,761.36 = 355,992.10/x - Step 3: Cross multiply
657,798.10x = 907,761.36 × 355,992.10 - Step 4: Simplify right side
657,798.10x = 323,155,872,845.26 - Step 5: Solve for x
x = 323,155,872,845.26/657,798.10 - Step 6: Final answer
x = 491,269.09
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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.