Finding the Fourth Proportional to 698,134.10, 963,503.07 and 422,643.75
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Solution
The fourth proportional to 698,134.10, 963,503.07 and 422,643.75 is: 583,295.60
Step by Step Solution
- Step 1: Write the proportion equation
698,134.10 : 963,503.07 = 422,643.75 : x - Step 2: Convert to fraction form
698,134.10/963,503.07 = 422,643.75/x - Step 3: Cross multiply
698,134.10x = 963,503.07 × 422,643.75 - Step 4: Simplify right side
698,134.10x = 407,218,548,528.09 - Step 5: Solve for x
x = 407,218,548,528.09/698,134.10 - Step 6: Final answer
x = 583,295.60
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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.