Finding the Fourth Proportional to 506,108.25, 698,430.60 and 279,753.75
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Solution
The fourth proportional to 506,108.25, 698,430.60 and 279,753.75 is: 386,060.85
Step by Step Solution
- Step 1: Write the proportion equation
506,108.25 : 698,430.60 = 279,753.75 : x - Step 2: Convert to fraction form
506,108.25/698,430.60 = 279,753.75/x - Step 3: Cross multiply
506,108.25x = 698,430.60 × 279,753.75 - Step 4: Simplify right side
506,108.25x = 195,388,579,464.75 - Step 5: Solve for x
x = 195,388,579,464.75/506,108.25 - Step 6: Final answer
x = 386,060.85
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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.