Finding the Fourth Proportional to 778,728.49, 1,074,643.29 and 434,560.75
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Solution
The fourth proportional to 778,728.49, 1,074,643.29 and 434,560.75 is: 599,692.70
Step by Step Solution
- Step 1: Write the proportion equation
778,728.49 : 1,074,643.29 = 434,560.75 : x - Step 2: Convert to fraction form
778,728.49/1,074,643.29 = 434,560.75/x - Step 3: Cross multiply
778,728.49x = 1,074,643.29 × 434,560.75 - Step 4: Simplify right side
778,728.49x = 466,997,794,084.87 - Step 5: Solve for x
x = 466,997,794,084.87/778,728.49 - Step 6: Final answer
x = 599,692.70
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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.