Finding the Fourth Proportional to 764,738.80, 1,055,366.49 and 438,110.08
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Solution
The fourth proportional to 764,738.80, 1,055,366.49 and 438,110.08 is: 604,607.35
Step by Step Solution
- Step 1: Write the proportion equation
764,738.80 : 1,055,366.49 = 438,110.08 : x - Step 2: Convert to fraction form
764,738.80/1,055,366.49 = 438,110.08/x - Step 3: Cross multiply
764,738.80x = 1,055,366.49 × 438,110.08 - Step 4: Simplify right side
764,738.80x = 462,366,697,363.22 - Step 5: Solve for x
x = 462,366,697,363.22/764,738.80 - Step 6: Final answer
x = 604,607.35
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1.5x scale
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.