Finding the Fourth Proportional to 775,482.40, 1,069,728.74 and 453,124.08
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Solution
The fourth proportional to 775,482.40, 1,069,728.74 and 453,124.08 is: 625,055.90
Step by Step Solution
- Step 1: Write the proportion equation
775,482.40 : 1,069,728.74 = 453,124.08 : x - Step 2: Convert to fraction form
775,482.40/1,069,728.74 = 453,124.08/x - Step 3: Cross multiply
775,482.40x = 1,069,728.74 × 453,124.08 - Step 4: Simplify right side
775,482.40x = 484,719,851,162.06 - Step 5: Solve for x
x = 484,719,851,162.06/775,482.40 - Step 6: Final answer
x = 625,055.90
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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.